check engine FORD FIESTA 1989 Service Owner's Guide

(see illustration). Centralise the seal on the
shaft, then insert and tighten the housing
retaining bolts to the specified torque setting.
Refit the sump with reference to Section 11.
12 Check that the crankshaft rear flange
and the flywheel mating faces are clean, then
refit the flywheel as described in Section 16.
15 Engine/transmission mountings - inspection and
renewal
2
Inspection
1 The engine/transmission mountings seldom
require attention, but broken or deteriorated
mountings should be renewed immediately, or
the added strain placed on the driveline
components may cause damage or wear.
2 During the check, the engine/transmission
must be raised slightly, to remove its weight
from the mountings.
3 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and Vehicle Support” ). Position
a jack under the sump, with a large block of
wood between the jack head and the sump,
then carefully raise the engine/transmission
just enough to take the weight off the
mountings.
4 Check the mountings to see if the rubber is
cracked, hardened or separated from the metal components. Sometimes, the rubber
will split right down the centre.
5
Check for relative movement between each
mounting’s brackets and the
engine/transmission or body (use a large
screwdriver or lever to attempt to move the
mountings). If movement is noted, lower the
engine and check-tighten the mounting
fasteners.
Renewal
6 The engine mountings can be removed if
the weight of the engine/transmission is
supported by one of the following alternative
methods.
7 Either support the weight of the assembly
from underneath using a jack and a suitable
piece of wood between the jack saddle and
the sump or transmission (to prevent
damage), or from above by attaching a hoist
to the engine. A third method is to use a
suitable support bar with end pieces which
will engage in the water channel each side of
the bonnet lid aperture. Using an adjustable hook and chain connected to the engine, the
weight of the engine and transmission can
then be taken from the mountings.
Engine right-hand mounting
8
Unscrew and remove the mounting side
bolt from under the right-hand wheel arch
(see illustration) .
9 Unscrew and remove the mounting
retaining nut and washer from the suspension
strut cup retaining plate (see illustration).
10 Undo the three bolts securing the
mounting unit to the cylinder block. The
mounting unit and bracket can then be
lowered from the engine (see illustration).
11 Unbolt and remove the mounting from its
support bracket.
Transmission bearer and mountings
12 Unscrew and remove the two nuts
securing the mountings (front and rear) to the
transmission bearer (see illustration).
13 Support the transmission bearer, then
undo and remove the four retaining bolts from
the floorpan, two at the front and two at the
2A•10 HCS engine in-car repair procedures
15.12 Exploded view of the transmission bearer mountings
15.10 Undo the three bolts securing the
mounting assembly to the cylinder block
and withdraw the mounting
15.9 Unscrew and remove the mountingretaining nut and washer from the
suspension strut cup retaining plate15.8 Unscrew and remove the engine
mounting side bolt (arrowed) from under the wheel arch14.11b Fitting the rear oil seal housing
with a new gasket in position on the rear face of the cylinder block
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rear, and lower the transmission bearer from
the vehicle. Note plate fitment, as applicable,
for reassembly.
14Unscrew the single nut securing each
mounting and its retainer to the transmission
support bracket, and remove. The
transmission support brackets are fixed
externally to the transmission casing and do
not need to be removed for this operation.
All mountings
15 Refitting of all mountings is a reversal of
removal. Make sure that the original sequence
of assembly of washers and plates is
maintained.
16 Do not fully tighten any mounting bolts
until they are all located. As the mounting
bolts and nuts are tightened, check that the
mounting rubbers do not twist.
16 Flywheel - removal, inspection
and refitting
3
Refitting
1 Remove the transmission as described in
Chapter 7A, then remove the clutch as
described in Chapter 6. 2
Unscrew the six retaining bolts, and remove
the flywheel from the rear end flange of the
crankshaft - take care not to drop the
flywheel, as it is heavy. A tool similar to that
shown in illustration 16.5 can be fitted to
prevent the flywheel/crankshaft from rotating
as the bolts are removed. If on removal, the
retaining bolts are found to be in poor
condition (stretched threads, etc) they must
be renewed.
Inspection
3 Inspect the starter ring gear on the flywheel
for any broken or excessively-worn teeth. If
evident, the ring gear must be renewed; this is
a task best entrusted to a Ford dealer or a
competent garage. Alternatively, obtain a
complete new flywheel.
4 The clutch friction surface on the flywheel
must be carefully inspected for grooving or
hairline cracks (caused by overheating). If
these conditions are evident, it may be
possible to have the flywheel surface-ground
to renovate it, providing that the balance is
not upset. Regrinding is a task for an
automotive engineer. If surface-grinding is not
possible, the flywheel must be renewed.
Refitting
5 Check that the mating faces of the flywheel and the crankshaft are clean before refitting.
Lubricate the threads of the retaining bolts
with engine oil before they are screwed into
position. Locate the flywheel onto the
crankshaft, and insert the bolts. Hand-tighten
them initially, then tighten them in a
progressive sequence to the specified torque
wrench setting
(see illustration) .
6 Refit the clutch as described in Chapter 6
and the transmission as described in Chap-
ter 7A.
HCS engine in-car repair procedures 2A•11
16.5 Tightening the flywheel retaining bolts to the specified torque
Note the “peg” tool (arrowed) locking the ring gear teeth to prevent the flywheel/crankshaft from rotating
2A
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2B
1595Ford Fiesta Remake
General
Engine type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . Four-cylinder, in-line overhead camshaft
Engine code:1.4 litre CVH engine: Carburettor models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. FUF or FUG
CFi fuel injection models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F6E
1.4 litre PTE engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . F4A
1.6 litre CVH engine: Carburettor models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. LUH
EFi fuel injection models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LJC or LJD
Turbo models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . LHA
Capacity:
1.4 litre CVH and PTE engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1392 cc
1.6 litre CVH engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 1596 cc
Bore:
1.4 litre CVH and PTE engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77.24 mm
1.6 litre CVH engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 79.96 mm
Stroke:
1.4 litre CVH and PTE engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.30 mm
1.6 litre CVH engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 79.52 mm
Compression ratio:
1.4 litre CVH carburettor engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.5:1
1.4 litre CVH CFi fuel injection engine . . . . . . . . . . . . . . . . . . . . . . . . 8.5:1
1.4 litre PTE engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 9.5:1
1.6 litre CVH engine: Carburettor models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 9.5:1
EFi fuel injection models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.75:1
Turbo models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 8.0:1
Firing order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . 1-3-4-2 (No 1 cylinder at timing belt end)
Direction of crankshaft rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clockwise (seen from right-hand side of vehicle)
Chapter 2 Part B:
CVH and PTE engine in-car repair procedures
Auxiliary drivebelt check and renewal . . . . . . . . . . . . . . .See Chapter 1
Camshaft oil seal - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Camshaft, rocker arms and tappets - removal, inspection and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 11
Compression test - description and interpretation . . . . . . . . . . . . . . 2
Crankshaft oil seals - renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Crankshaft pulley - removal and refitting . . . . . . . . . . . . . . . . . . . . . 6
Cylinder head - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . 12
Cylinder head rocker cover - removal and refitting . . . . . . . . . . . . . . 4
Engine oil and filter renewal . . . . . . . . . . . . . . . . . . . . . . .See Chapter 1
Engine oil level check . . . . . . . . . . . . . . . . . . . . . .See
“Weekly Checks”
Engine/transmission mountings - renewal . . . . . . . . . . . . . . . . . . . . 17 Flywheel/driveplate - removal, inspection and refitting . . . . . . . . . . 18
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 1
Oil pump - dismantling, inspection and reassembly . . . . . . . . . . . . . 15
Oil pump - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Sump - removal and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Timing belt - removal, refitting and adjustment . . . . . . . . . . . . . . . . 8
Timing belt covers - removal and refitting . . . . . . . . . . . . . . . . . . . . . 7
Timing belt tensioner and sprockets - removal, inspection
and refitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 9
Top Dead Centre (TDC) for No 1 piston - locating . . . . . . . . . . . . . . 3
Valve clearances - general information . . . . . . . . . . . . . . . . . . . . . . . 5
2B•1
Specifications Contents
Easy, suitable for
novice with little
experience Fairly easy,
suitable
for beginner with
some experience Fairly difficult,
suitable for competent
DIY mechanic
Difficult,
suitable for
experienced DIY
mechanic Very difficult,
suitable for expert DIY
or professional
Degrees of difficulty
54321
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1 General information
How to use this Chapter
This Part of Chapter 2 is devoted to repair
procedures possible while the engine is still
installed in the vehicle, and includes only the
Specifications relevant to those procedures.
Similar information concerning the 1.3 litre
HCS engine, and the 1.6 and 1.8 litre Zetec
engines, will be found in Parts A and C of this
Chapter respectively. Since these procedures
are based on the assumption that the engine
is installed in the vehicle, if the engine has
been removed from the vehicle and mounted
on a stand, some of the preliminary
dismantling steps outlined will not apply.
Information concerning engine/transmission
removal and refitting, and engine overhaul, can
be found in Part D of this Chapter, which also
includes the Specifications relevant to those
procedures.
Engine description
The engine is a four-cylinder, in-line
overhead camshaft type, designated CVH
(Compound Valve angle, Hemispherical
combustion chamber) or PTE (Pent roof, high
Torque, low Emission). The PTE engine was
introduced for 1994 and, apart from
modifications to the cylinder head, camshaft
and intake system, is virtually identical to the
CVH engine it replaces. The engine is
mounted transversely at the front of the
vehicle together with the transmission to form
a combined power unit. The crankshaft is supported in five split-
shell type main bearings within the cast-iron
crankcase. The connecting rod big-end
bearings are split-shell type, and the pistons
are attached by interference-fit gudgeon pins.
Each piston has two compression rings and
one oil control ring.
The cylinder head is of light alloy
construction, and supports the camshaft in five
bearings. Camshaft drive is by a toothed
composite rubber timing belt, which is driven by
a sprocket on the front end of the crankshaft.
The timing belt also drives the water pump,
which is mounted below the cylinder head. Hydraulic cam followers (tappets) operate the
rocker arms and valves. The tappets are
operated by pressurised engine oil. When a
valve closes, the oil passes through a port in the
body of the cam follower, through four grooves
in the plunger and into the cylinder feed
chamber. From the chamber, the oil flows to a
ball-type non-return valve and into the pressure
chamber. The tension of the coil spring causes
the plunger to press against the valve, and so
eliminates any free play. As the cam lifts the
follower, the oil pressure in the pressure
chamber is increased, and the non-return valve
closes off the port feed chamber. This in turn
provides a rigid link between the cam follower,
the cylinder and the plunger. These then rise as a unit to open the valve. The cam follower-to-
cylinder clearance allows the specified quantity
of oil to pass from the pressure chamber, oil only
being allowed past the cylinder bore when the
pressure is high during the moment of the valve
opening. When the valve closes, the escape of
oil will produce a small clearance, and no
pressure will exist in the pressure chamber. The
feed chamber oil then flows through the non-
return valve and into the pressure chamber, so
that the cam follower cylinder can be raised by
the pressure of the coil spring, eliminating free
play until the valve is operated again.
As wear occurs between the rocker arm
and the valve stem, the quantity of oil that
flows into the pressure chamber will be
slightly more than the quantity lost during the
expansion cycle of the cam follower.
Conversely, when the cam follower is
compressed by the expansion of the valve, a
slightly smaller quantity of oil will flow into the
pressure chamber than was lost. A rotor-type oil pump is mounted on the
timing cover end of the engine, and is driven
by a gear on the front end of the crankshaft. A
full-flow type oil filter is fitted, and is mounted
on the side of the crankcase.
Repair operations possible with
the engine in the car
The following work can be carried out with
the engine in the car:
a) Compression pressure - testing.
b) Rocker cover - removal and refitting.
c) Timing belt - removal, refitting and
adjustment.
d) Camshaft oil seal - renewal.
e) Camshaft - removal and refitting.
f) Cylinder head - removal and refitting.
g) Cylinder head and pistons - decarbonising.
h) Crankshaft pulley - removal and refitting.
i) Crankshaft oil seals - renewal.
j) Oil filter renewal.
k) Sump - removal and refitting.
l) Flywheel - removal, inspection and refitting.
m) Mountings - removal and refitting.
Note: It is possible to remove the pistons and
connecting rods (after removing the cylinder
head and sump) without removing the engine.
However, this is not recommended. Work of
this nature is more easily and thoroughly
completed with the engine on the bench, as
described in Chapter 2D.
2 Compression test -
description and interpretation
2
Refer to Section 2 in Part A of this Chap-
ter.
3 Top Dead Centre (TDC) for
No 1 piston - locating
2
1Top dead centre (TDC) is the highest point
of the cylinder that each piston reaches as the
crankshaft turns. Each piston reaches its TDC
position at the end of its compression stroke,
and then again at the end of its exhaust
stroke. For the purpose of engine timing, TDC
on the compression stroke for No 1 piston is
used. No 1 cylinder is at the timing belt end of
the engine. Proceed as follows.
2 Remove the upper timing belt cover as
described in Section 7.
3 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and Vehicle Support” ).
4 Undo the retaining bolts, and remove the
cover from the underside of the crankshaft
pulley.
5 Fit a spanner onto the crankshaft pulley bolt,
and turn the crankshaft in its normal direction
of rotation (clockwise, viewed from the pulley
end) to the point where the crankshaft pulley
timing notch is aligned with the TDC (0) timing
mark on the timing belt cover.
6 Although the crankshaft is now in top dead
centre alignment, with piston Nos 1 and 4 at
the top of their stroke, the No 1 piston may
not be on its compression stroke. To confirm
that it is, check that the timing pointer on the
camshaft sprocket is exactly aligned with the
TDC mark on the front face of the cylinder
head (see illustrations) . If the pointer is not
aligned, turn the crankshaft pulley one further
CVH and PTE engine in-car repair procedures 2B•3
3.6b Camshaft sprocket timing mark
aligned with the TDC mark on the front
face of the cylinder head3.6a Crankshaft pulley notch (arrowed)aligned with the TDC (0) mark on the
timing belt cover
2B
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Turning the engine will be
easier if the spark plugs are
removed first - see Chapter 1.
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complete turn, and all the markings should
now align.
7With the engine set at No 1 piston on TDC
compression, refit the crankshaft pulley cover,
lower the vehicle and refit the upper timing
belt cover.
4 Cylinder head rocker cover -
removal and refitting
2
Removal
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Remove the air cleaner assembly and air
inlet components as necessary for access as
described in the relevant Part of Chapter 4.
Disconnect the crankcase ventilation hose
from the rocker cover.
3 Remove the timing belt upper cover as
described in Section 7.
4 Referring to the relevant Part of Chapter 4
for details, disconnect the accelerator cable
from the throttle linkage and from the adjuster
bracket above the rocker cover. Position the
cable out of the way.
5 Where applicable, disconnect the choke
cable from the carburettor, referring to
Chapter 4A for details.
6 Unscrew and remove the rocker cover
retaining bolts and washers, then lift the cover
from the cylinder head. Note that a new
rocker cover gasket will be needed on
refitting.
Refitting
7 Before refitting the rocker cover, clean the
mating surfaces of both the cylinder head and
the cover.
8 Locate the new gasket in position, then fit
the cover retaining bolts and washers. Ensure
that the grooves in the plate washers are
facing upwards as they are fitted (see
illustrations) . Tighten the cover retaining
bolts to the specified torque wrench setting.
Refer to Chapter 4 for details on reconnecting
the accelerator cable, choke cable, air inlet
components and air cleaner (as applicable).
9 Refit the timing belt cover and reconnect
the battery earth lead.
5 Valve clearances -
general information
It is necessary for a clearance to exist
between the tip of each valve stem and the
valve operating mechanism, to allow for the
expansion of the various components as the
engine reaches normal operating
temperature. On most older engine designs, this meant
that the valve clearances (also known as
“tappet” clearances) had to be checked and
adjusted regularly. If the clearances were
allowed to be too slack, the engine would be
very noisy, its power output would suffer, and
its fuel consumption would increase. If the
clearances were allowed to be too tight, the
engine’s power output would be reduced, and
the valves and their seats could be severely
damaged. These engines employ hydraulic tappets
which use the lubricating system’s oil
pressure to automatically take up the
clearance between each camshaft lobe and
its respective valve stem. Therefore, there is
no need for regular checking and adjustment
of the valve clearances. However, it is
essential that only good-quality oil of the
recommended viscosity and specification is
used in the engine, and that this oil is always
changed at the recommended intervals. If this
advice is not followed, the oilways and
tappets may become clogged with particles of
dirt, or deposits of burnt (inferior) engine oil,
so that the system cannot work properly;
ultimately, one or more of the tappets may fail,
and expensive repairs may be required. On starting the engine from cold, there will
be a slight delay while full oil pressure builds
up in all parts of the engine, especially in the
tappets; the valve components, therefore,
may well “rattle” for about 10 seconds or so,
and then quieten. This is a normal state of
affairs, and is nothing to worry about,
provided that all tappets quieten quickly and
stay quiet. After the vehicle has been standing for
several days, the valve components may
“rattle” for longer than usual, as nearly all the oil will have drained away from the engine’s
top-end components and bearing surfaces.
While this is only to be expected, care must
be taken not to damage the engine under
these circumstances - avoid high-speed
running until all the tappets are refilled with oil
and operating normally. With the vehicle
stationary, hold the engine at no more than a
fast idle speed (maximum 2000 to 2500 rpm)
for 10 to 15 minutes, or until the noise ceases.
Do not run the engine at more than 3000 rpm
until the tappets are fully charged with oil and
the noise has ceased.
If the valve components are thought to be
noisy, or if a light rattle persists from the top
end after the engine has warmed up to normal
operating temperature, take the vehicle to a
Ford dealer for expert advice. Depending on
the mileage covered and the usage to which
each vehicle has been put, some vehicles may
be noisier than others; only a good mechanic
experienced in these engines can tell if the
noise level is typical for the vehicle’s mileage,
or if a genuine fault exists. If any tappet’s
operation is faulty, it must be renewed
(Section 11).
6 Crankshaft pulley -
removal and refitting
2
Removal
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and Vehicle Support” ).
3 Unbolt and remove the cover from the
underside of the crankshaft pulley.
4 Remove the auxiliary drivebelt as described
in Chapter 1.
5 If timing belt renewal is also intended, set
the engine at TDC as described in Section 3
before removing the crankshaft pulley and
retaining bolt.
6 To prevent the crankshaft from turning as
the pulley bolt is loosened off, remove the
starter motor as described in Chapter 5A, and
then lock the starter ring gear using a suitable
lever (see illustration) .
2B•4 CVH and PTE engine in-car repair procedures
6.6 Using a suitable bar to lock the
flywheel ring gear4.8b Rocker cover retaining bolts and plate washers4.8a Fitting a new gasket to the rocker cover
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7Unscrew and remove the crankshaft pulley
retaining bolt and its washer. Withdraw the
pulley from the front end of the crankshaft
(see illustration) . If necessary, lever it free
using a pair of diagonally-opposed levers
positioned behind the pulley.
Refitting
8 Refit in the reverse order of removal. Tighten
the pulley retaining bolt to the specified torque
setting, and refer to Chapter 1 for details on
refitting the auxiliary drivebelt.
9 On completion, reconnect the battery
negative lead.
7 Timing belt covers -
removal and refitting
1
Removal
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Where applicable, undo the two bolts
securing the power steering fluid pipe support
clips and ease the pipe away from the upper
cover.
3 Undo the two retaining bolts and remove
the upper timing belt cover (see illustration).
4 Refer to the previous Section for details,
and remove the crankshaft pulley.
5 Unscrew the two bolts securing the lower
timing belt cover, and remove it (see
illustration) .
Refitting
6Refit in the reverse order of removal.
Tighten the cover retaining bolts to the
specified torque wrench setting.
7 On completion, reconnect the battery earth
lead.
8 Timing belt - removal, refitting
and adjustment
3
Removal
1 Referring to the previous Sections for
details, remove the rocker cover, the
crankshaft pulley and the timing belt covers.
2 Check that the crankshaft is set with the
No 1 piston at TDC (on its compression
stroke) before proceeding. If necessary, refer
to Section 3 for further details.
3 To check the timing belt for correct
adjustment, proceed as described in
paragraph 12 below. To remove the belt,
proceed as follows.
4 Loosen off the two bolts securing the timing
belt tensioner. Using a large screwdriver, prise
the tensioner to one side to release the timing
belt tension. Secure the tensioner in this
position by retightening the bolts (see
illustration) .
5 If the original timing belt is to be refitted,
mark it for direction of travel and also the
exact tooth engagement positions on all sprockets. Slip the belt from the camshaft,
water pump and crankshaft sprockets
(see
illustration) . Whilst the timing belt is
removed, avoid any excessive movement of
the sprockets, otherwise the piston crowns
and valves may come into contact and be
damaged.
6 If the belt is being removed for reasons
other than routine renewal, check it carefully
for any signs of uneven wear, splitting, cracks
(especially at the roots of the belt teeth) or
contamination with oil or coolant. Renew the
belt if there is the slightest doubt about its
condition. As a safety measure, the belt must
be renewed as a matter of course at the
intervals given in Chapter 1; if its history is
unknown, the belt should be renewed
irrespective of its apparent condition
whenever the engine is overhauled.
Refitting and adjustment
7 Before refitting the belt, check that the
crankshaft is still at the TDC position, with the
small projection on the belt sprocket front
flange aligned with the TDC mark on the oil
pump housing (see illustration) . Also ensure
that the camshaft sprocket is set with its TDC
pointer aligned with the corresponding timing
mark on the cylinder head (see illus-
tration 3.6b) . If necessary, adjust the
sprockets slightly. As previously mentioned,
avoid any excessive movement of the
sprockets whilst the belt is removed.
8 Engage the timing belt teeth with the teeth
CVH and PTE engine in-car repair procedures 2B•5
7.5 Lower timing belt cover removal7.3 Upper timing belt cover removal6.7 Crankshaft pulley removal
8.7 Sprocket and oil pump housing
TDC marks in alignment8.5 Timing belt removal8.4 Timing belt tensioner retaining bolts (arrowed)
2B
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of the crankshaft sprocket, and then pull the
belt vertically upright on its right-hand run.
Keep it taut, and engage it with the teeth of
the camshaft sprocket. If the original belt is
being refitted, check that the belt’s direction
of travel is correct, and realign the belt-to-
sprocket marks made during removal, to
ensure that the exact original engagement
positions are retained. When the belt is fully
fitted on the sprockets, check that the
sprocket positions have not altered.
9Carefully manoeuvre the belt around the
tensioner, and engage its teeth with the water
pump sprocket, again ensuring that the TDC
positions of the crankshaft and camshaft
are not disturbed as the belt is finally
located.
10 Refit the lower timing belt cover, and
tighten its retaining bolts to the specified
torque setting. Refit the crankshaft pulley, and
tighten its retaining bolt to the specified
torque setting.
11 To take up belt slack, loosen off the
tensioner and move it towards the front of the
car to apply an initial tension to the belt.
Secure the tensioner in this position, then
remove the flywheel ring gear locking device.
12 Rotate the crankshaft through two full
revolutions in (the normal direction of travel),
returning to the TDC position (camshaft
sprocket-to-cylinder head). Check that the
crankshaft pulley notch is aligned with the
TDC (0) mark on the lower half of the timing
belt cover.
13 Grasp the belt between the thumb and
forefinger, at the midway point between the
crankshaft and camshaft sprockets on the
right-hand side. If the belt tension is correct, it
should just be possible to twist the belt
through 90º at this point (see illustration). To
adjust the belt, loosen off the tensioner
retaining bolts, move the tensioner as
required using a suitable screwdriver as a
lever, then retighten the retaining bolts. Rotate
the crankshaft to settle the belt, then
recheck the tension. It may take two or three
attempts to get the tension correct. On
completion, tighten the tensioner bolts to the
specified torque wrench setting.
14 It should be noted that this setting is
approximate, and the belt tension should be
rechecked by a Ford dealer with the special tensioner-setting tool at the earliest
opportunity.
15
Refit the starter motor (refer to Chap-
ter 5A).
16 Refit the rocker cover (see Section 4) and
the upper timing belt cover (see Section 7).
17 Refit the auxiliary drivebelt, adjust its
tension as described in Chapter 1, then refit
the crankshaft pulley lower cover.
18 On completion, reconnect the battery
earth lead.
9 Timing belt tensioner and sprockets - removal,
inspection and refitting
3
Tensioner
1 Set the engine at TDC for No 1 piston on
compression as described in Section 3, then
refer to Section 7 and remove the timing belt
upper cover.
2 Loosen off the two bolts securing the timing
belt tensioner. Using a large screwdriver, prise
the tensioner to one side to release the timing
belt tension.
3 Remove the two tensioner bolts, and
withdraw the tensioner from behind the timing
belt.
4 Check the condition of the tensioner,
ensuring that it rotates smoothly on its
bearings, with no signs of roughness or
excessive free play. Renew the tensioner if in
doubt about its condition.
5 To refit the tensioner, first check that the
engine is still positioned at TDC for No 1
piston on compression, with both the
camshaft and crankshaft sprocket timing
marks correctly aligned as described in
Section 3.
6 Refit the tensioner, guiding it in position
around the timing belt, and secure with the
two bolts. Move the tensioner towards the
front of the car, to apply an initial tension to
the belt. Secure the tensioner in this position.
7 Adjust the timing belt tension as described
in Section 8, paragraphs 12 to 14.
8 Refit the timing belt upper cover on
completion.
Camshaft sprocket
9 Set the engine at TDC for No 1 piston on
compression as described in Section 3, then
refer to Section 7 and remove the timing belt
upper cover.
10 Loosen off the two bolts securing the
timing belt tensioner. Using a large
screwdriver, prise the tensioner to one side to
release the timing belt tension. Slip the timing
belt off the camshaft sprocket.
11 Pass a bar through one of the holes in the
camshaft sprocket to prevent the camshaft
from rotating, then unscrew and remove the
sprocket retaining bolt. Note that this bolt
must be renewed when refitting the camshaft
sprocket. Remove the sprocket, noting the
Woodruff key fitted to the camshaft; if the key
is loose, remove it for safekeeping.
12 Check the condition of the sprocket,
inspecting carefully for any wear grooves,
pitting or scoring around the teeth.
13 Install the Woodruff key, then fit the
camshaft sprocket with a newretaining bolt.
The threads of the bolt should be smeared
with thread-locking compound prior to fitting.
Tighten the retaining bolt to the specified
torque wrench setting (see illustrations).
14 Check that the engine is still positioned at
TDC for No 1 piston on compression, with
both the camshaft and crankshaft sprocket
timing marks correctly aligned as described in
Section 3.
15 Slip the timing belt over the camshaft
sprocket, then move the tensioner towards
the front of the car to apply an initial tension to
the belt. Secure the tensioner in this position.
16 Adjust the timing belt tension as
described in Section 8, paragraphs 12 to 14.
17 Refit the timing belt upper cover on
completion.
Crankshaft sprocket
18 Remove the timing belt as described in
Section 8.
19 The crankshaft sprocket can now be
withdrawn. If it is a tight fit on the crankshaft,
a puller or two large screwdrivers can be used
to release its grip. Withdraw the thrustwasher
and the Woodruff key from the crankshaft.
20 Check the condition of the sprocket,
2B•6 CVH and PTE engine in-car repair procedures
9.13b . . . and tighten the retaining bolt to
the specified torque whilst retaining the
sprocket as shown9.13a Refit the camshaft sprocket . . .
8.13 Checking the tension of the timing belt
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inspecting carefully for any wear grooves,
pitting or scoring around the teeth.
21Refit the thrustwasher with its curved side
facing outwards, followed by the Woodruff
key.
22 Lubricate the oil seal and the crankshaft
sprocket with engine oil, then position the
sprocket on the crankshaft with its thrust face
facing outwards.
23 Using the auxiliary drivebelt pulley and its
retaining bolt, draw the sprocket fully into
position on the crankshaft. Remove the
pulley.
24 Refit the timing belt as described in
Section 8.
10 Camshaft oil seal - renewal
3
1Remove the camshaft sprocket as
described in the previous Section.
2 The oil seal is now accessible for removal.
Note its direction of fitting, then using a
suitable screwdriver or a tool with a hooked
end to lever and extract the seal from its
housing (but take care not to damage the
housing with the tool) (see illustration).
3 Check that the housing is clean before
fitting the new seal. Lubricate the lips of the
seal and the running faces of the camshaft
with clean engine oil. Carefully locate the seal
over the camshaft, and drive it squarely into
position using a suitable tube or a socket (see
illustration) . An alternative method of fitting is to draw it squarely into position using the old
sprocket bolt and a suitable distance piece.
4
With the seal fully inserted in its housing,
refit the camshaft sprocket as described in
the previous Section.
11 Camshaft, rocker arms and tappets - removal, inspection
and refitting
3
Removal
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Refer to the appropriate earlier Sections in
this Chapter, and remove the timing belt
upper cover and the rocker cover.
3 On carburettor models, refer to Chapter 4A
and remove the fuel pump. On models equipped with a distributor ignition system,
refer to Chapter 5B and remove the distributor.
On PTE engines, refer to Chapter 4D and
remove the camshaft position sensor.
4
On models equipped with distributorless
ignition system, detach, unbolt and remove
the ignition coil, its support bracket and the
interference capacitor from the end of the
cylinder head, as described in Chapter 5B.
5 Undo the retaining nuts and remove the
guides, rocker arms and spacer plates (see
illustrations) . Keep the respective
components in their original order of fitting by
marking them with a piece of numbered tape,
or by using a suitable sub-divided box.
6 Withdraw the hydraulic tappets, again
keeping them in their original fitted sequence.
The tappets should be placed in an oil bath
while removed (see illustrations) .
7 Unbolt and remove the lower cover beneath
CVH and PTE engine in-car repair procedures 2B•7
11.5a Undo the rocker arm retaining nut . . .
10.3 Using a socket to tap the camshaft
oil seal into place
11.6b Store tappets in clearly-marked
container filled with oil to prevent oil loss11.6a Removing a hydraulic tappet
11.5c . . . followed by the rocker arm . . .11.5b . . . withdraw the guide . . .
11.5d . . . and spacer plate
10.2 Camshaft front oil seal removal
2B
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the crankshaft pulley, then with a spanner
engaged on the crankshaft pulley bolt, turn
the crankshaft over to set the engine at TDC
for No 1 piston on compression (see Sec-
tion 3).
8Remove the camshaft sprocket as
described in Section 9.
9 Extract the camshaft oil seal as described
in Section 10.
10 Before removing the camshaft and its
thrust plate, check and take note of the
amount of camshaft endfloat, using a dial
gauge or feeler gauges. With the camshaft
endfloat measured and noted, unscrew the
two retaining bolts and then extract the
camshaft thrust plate from its pocket at the
front end of the cylinder head (see
illustrations) .
11 On models with a distributorless ignition system, at the rear end of the cylinder head,
pierce the camshaft blanking plug with a
suitable tool, and then lever it out of its
aperture
(see illustrations) .
12 Withdraw the camshaft from the cylinder
head at the rear (distributor/ignition coil) end
(see illustration) . Take care not to damage
the bearings in the cylinder head as the shaft
is withdrawn.
Inspection
13 Clean and inspect the various
components removed for signs of excessive
wear.
14 Examine the camshaft bearing journals
and lobes for damage or wear. If evident, a
new camshaft will be required.
15 Compare the previously-measured
camshaft endfloat with that specified. If the endfloat is outside of the specified tolerance,
the thrust plate must be renewed.
16
The camshaft bearing bore diameters in
the cylinder head should be measured and
checked against the tolerances specified. A
suitable measuring gauge will be required for
this, but if this is not available, check for
excessive movement between the camshaft
journals and the bearings. If the bearings are
found to be unacceptably worn, a new
cylinder head is the only answer, as the
bearings are machined directly into the head.
17 It is seldom that the hydraulic tappets are
badly worn in the cylinder head bores but
again, if the bores are found to be worn
beyond an acceptable level, the cylinder head
must be renewed.
18 If the contact surfaces of the cam lobes
show signs of depression or grooving, they
cannot be renovated by grinding, as the
hardened surface will be removed and the
overall length of the tappet(s) will be reduced.
The self-adjustment point of the tappet will be
exceeded as a result, so that the valve
adjustment will be affected, resulting in noisy
operation. Therefore, renewal of the camshaft
is the only remedy in this case.
19 Inspect the rocker arm contact surfaces
for excessive wear, and renew if necessary
(see illustration) .
Refitting
20Refitting the camshaft and its associated
components is a reversal of the removal
procedure, but note the following special
points.
21 Lubricate the camshaft bearings, the
camshaft and the thrust plate with clean
engine oil prior to fitting them. As the
camshaft is inserted, take care not to damage
the bearings in the cylinder head. Tighten the
camshaft thrust plate retaining bolts to the
specified torque. When the thrust plate bolts
are tightened, make a final check to ensure
that the camshaft endfloat is as specified.
22 A new front oil seal must be fitted after the
camshaft has been installed (see previous
Section for details). It will also be necessary to
insert a new blanking plug into the rear end of
the cylinder head (where applicable). Drive it
squarely into position so that it is flush with
the head (see illustration) .
2B•8 CVH and PTE engine in-car repair procedures
11.22 Driving a new blanking plug into
position11.19 Inspect the rocker arm contactpoints indicated for excessive wear11.12 Withdraw the camshaft from the cylinder head
11.11b . . . and lever it out of the cylinder
head11.11a Pierce the centre of the blankingplug . . .
11.10b . . . and lift out the camshaft thrust plate11.10a Undo the two retaining bolts(arrowed) . . .
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be fitted on reassembly. Tie the downpipe up
to support it.
18Before it is released and removed, the
cylinder head must first have cooled down to
room temperature (about 20ºC).
19 Unscrew the cylinder head retaining bolts
progressively in the reverse order to that
shown for tightening (see illustration 12.28).
The cylinder head bolts must be discarded
and new bolts obtained for refitting the
cylinder head.
20 Remove the cylinder head complete with
its manifolds. If necessary, grip the manifolds
and rock it free from the location dowels on
the top face of the cylinder block. Do not
attempt to tap it sideways or lever between
the head and the block top face.
21 Remove the cylinder head gasket. This must
always be renewed; it is essential that the
correct type is obtained. Save the old gasket, so
that the identification marks (teeth) can be used
when ordering the new one (see illustration).
Preparation for refitting
22The mating faces of the cylinder head and
cylinder block must be perfectly clean before
refitting the head. Use a hard plastic or wood
scraper to remove all traces of gasket and
carbon; also clean the piston crowns. Take
particular care during the cleaning operations,
as aluminium alloy is easily damaged. Also,
make sure that the carbon is not allowed to
enter the oil and water passages - this is
particularly important for the lubrication
system, as carbon could block the oil supply
to the engine’s components. Using adhesive
tape and paper, seal the water, oil and bolt
holes in the cylinder block.
23 Check the mating surfaces of the cylinder
block and the cylinder head for nicks, deep
scratches and other damage. If slight, they may be removed carefully with a file, but if
excessive, machining may be the only
alternative to renewal.
24
If warpage of the cylinder head gasket
surface is suspected, use a straight-edge to
check it for distortion. Refer to Part D of this
Chapter if necessary.
25 Ensure that new cylinder head bolts are
used when refitting and clean out the bolt
holes in the block. Screwing a bolt into an oil-
filled hole can (in extreme cases) cause the
block to fracture, due to the hydraulic
pressure.
Refitting
26 To prevent the possibility of the valves
and pistons coming into contact as the head
is fitted, turn the crankshaft over to position
No 1 piston approximately 20 mm below its
TDC position in the bore.
27 Locate the cylinder head gasket on the
top face of the cylinder block, locating it over
the dowels. Ensure that the gasket is fitted the
correct way up, as indicated by its “OBEN-
TOP” marking (see illustration) .
28 Lower the cylinder head into position,
ensuring that it fits over the locating dowels,
then insert the new retaining bolts. Hand-
tighten the bolts initially, then tighten them in
the order shown in the four stages to the
specified torque setting (see illustration).
Where possible, use an angular torque setting
gauge attachment tool for accurate tightening
of stages three and four. Alternatively, after
the first two stages, mark the bolt heads with
a dab of quick drying paint, so that the paint
spots all face the same direction. Now tighten
all the bolts in the sequence to the Stage 3
setting, by tightening them through the
specified angle. Finally, angle-tighten all the
bolts through the Stage 4 angle.
29 The camshaft sprocket should be
positioned so that its TDC index mark pointer
is in alignment with the TDC index spot mark
on the front end face of the cylinder head (see
illustration 3.6b).
30 Now turn the crankshaft pulley to bring its
TDC notch in alignment with the TDC (0)
indicator on the front face of the timing belt
cover, taking the shortest route (not vice-
versa) (see illustration 3.6a). 31
Refit the timing belt over the camshaft
sprocket, and then tension the belt as
described in Section 8.
32 The remainder of the refitting procedure is
a reversal of the removal process. Tighten all
fastenings to their specified torque setting
(where given). Refer to the appropriate Parts
of Chapter 4 for details on reconnecting the
fuel and exhaust system components, and to
Chapter 5B for details on reconnecting the
ignition system components. Ensure that all
coolant, fuel, vacuum and electrical
connections are securely made.
33 On completion, refill the cooling system
and top-up the engine oil (see Chapter 1 and
“Weekly Checks” ). When the engine is
restarted, check for any sign of fuel, oil and/or
coolant leakages from the various cylinder
head joints.
13 Sump -
removal and refitting
2
Removal
1 Disconnect the battery negative (earth) lead
(refer to Chapter 5A, Section 1).
2 Drain the engine oil as described in Chapter
1.
3 Chock the rear wheels then jack up the
front of the car and support it on axle stands
(see “Jacking and Vehicle Support” ). Remove
the auxiliary drivebelt lower cover from inside
the right-hand wheel arch.
4 Where fitted, pull free the oxygen sensor
lead multi-plug, and disconnect it. If the
engine has been recently run, take particular
care against burning when working in the area
of the catalytic converter.
5 Undo the retaining nuts, and detach the
exhaust downpipe from the manifold. The
flange gasket must be renewed when
reconnecting. Where applicable, also detach
the downpipe at the rear of the catalytic
converter, and release it from the front
mounting.
6 On XR2i models, remove the front
suspension crossmember as described in
Chapter 10. On all models, undo the nut and
2B•10 CVH and PTE engine in-car repair procedures
12.28 Cylinder head bolt tightening
sequence12.27 Fit the cylinder head gasket with the“OBEN/TOP” marking upwards . . .12.21 Cylinder head location dowels (A)and gasket identification teeth (B)
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To prevent carbon entering
the gap between the pistons
and bores, smear a little
grease in the gap. After
cleaning each piston, use a small brush
to remove all traces of grease and
carbon from the gap, then wipe away
the remainder with a clean rag.
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