camshaft SUZUKI SWIFT 2000 1.G SF310 Service Owner's Manual

1. Crank timing belt pulley bolt
Direction of crankshaft
ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-13
3) Check that timing mark (3) on camshaft timing belt pulley (1) is
aligned with “V” mark (2) on cylinder head cover (4). If not, align
two marks by turning camshaft but be careful not to turn it more
than its allowable turning range which is described on previous
page.
4) Check that punch mark (2) on crank timing belt pulley (4) is
aligned with arrow mark (3) on oil pump case. If not, align two
marks by turning crankshaft but be careful not to turn it more
than its allowable turning range which is described on previous
page.
5) With two sets of marks aligned, install timing belt (1) on two pul-
leys in such a way that the drive side of belt is free of any slack,
and with tensioner plate pushed up by finger.
And then install tensioner spring and spring damper (2) as
shown in figure, and handtighten tensioner stud.
NOTE:

When installing timing belt, match arrow mark (
) on
timing belt with rotating direction of crankshaft.

In this state, No.1 piston is at top dead center of compres-
sion stroke.
6) To take up slack of timing belt, turn crankshaft two rotations
clockwise after installing it. After making sure that belt is free
from slack, tighten tensioner stud (1) first and then tensioner bolt
(2) to each specified torque.
Then confirm again that two sets of marks are aligned respec-
tively.
Tightening Torque
(a): 11 N
.m (1.1 kg-m, 8.0 lb-ft)
(b): 27 N
.m (2.7 kg-m, 19.5 lb-ft)

1. Cylinder head cover
2. Gasket
3. Cylinder head
4. Camshaft housing No.1:
Apply sealant 99000-31110 to mating surface.
5. Camshaft housing No.2
6. Camshaft housing No.3:
Apply sealant 99000-31110 to mating surface.
7. Camshaft
8. Oil seal
9. Valve lash adjuster
10. Camshaft housing bolt
1. Crankshaft timing belt pulley: Tightening Torque
: Apply engine oil to sliding
: surfaces of each part.
ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-15
CAMSHAFT AND HYDRAULIC VALVE LASH ADJUSTER
REMOVAL
1) Disconnect negative cable at battery.
2) Remove cylinder head cover as previously outlined.
3) Remove distributor and then its case from cylinder head.
4) Remove crankshaft pulley, timing belt outside cover and timing
belt as previously outlined.
After removing timing belt, set key (2) on crankshaft in position
as shown in figure by turning crankshaft. This is to prevent inter-
ference between valves and piston when reinstalling camshaft.
5) Remove camshaft timing belt pulley (1).
Lock camshaft (2) with a proper size rod (3) inserted into hole (10
mm, 0.39 in.) in it as shown and then loosen camshaft timing belt
pulley bolt.
NOTE:
Mating surfaces of cylinder head and cover must not be
damaged in this work. So, put clean shop cloth (4) between
rod and mating surfaces, and use care not to bump rod
against mating surfaces hard when loosening bolt.

Don’t apply force
6A-16 ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE)
6) Remove camshaft housings from cylinder head.
7) Remove camshaft from cylinder head.
8) Remove valve lash adjuster from cylinder head.
NOTE:

Never disassemble hydraulic valve lash adjuster.

Don’t apply force to body of adjuster, for oil in high pres-
sure chamber in adjuster will leak.

Immerse removed adjuster (2) in clean engine oil (1) and
keep it there till reinstalling it so as to prevent oil leakage.
If it is left in air, place it with its bucket body facing down.
Don’t place on its side or with bucket body facing up.

ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-17
INSPECTION
Camshaft journal wear:

Check camshaft journals and camshaft housings for pitting,
scratches, wear or damage.
If any malcondition is found, replace camshaft or cylinder head
with housing. Never replace cylinder head without replacing
housings.
Check clearance by using gaging plastic (1). The procedure is as
follows.
1) Clean housings and camshaft journals.
2) Make sure that all valve lash adjusters are removed and install
camshaft to cylinder head.
3) Place a piece of gaging plastic the full width of journal of cam-
shaft (parallel to camshaft).
4) Install housings as outlined on the following page and evenly
torque housing bolts to specified torque. Housings MUST be
torqued to specification in order to assure proper reading of
camshaft journal clearance.
NOTE:
Do not rotate camshaft while gaging plastic is installed.
5) Remove housing, and using scale (2) on gaging plastic envel-
op, measure gaging plastic width at its widest point.
JournalStandardLimitJournal
clearance0.040 – 0.082 mm
(0.0016 – 0.0032 in.)0.12 mm
(0.0047 in.)
If measured camshaft journal clearance exceeds limit, mea-
sure journal (housing) bore and outside diameter of camshaft
journal. Replace camshaft or cylinder head assembly which-
ever the difference from specification is greater.
Item
Standard
Camshaft journalNo.126.000 – 26.021 mm
(1.0236 – 1.0244 in.)
j
bore dia.No.2 &
No.330.000 – 30.021 mm
(1.1811 – 1.1819 in.)
Camshaft journalNo.125.939 – 25.960 mm
(1.0212 – 1.0220 in.)
j
O.D.No.2 &
No.329.939 – 29.960 mm
(1.1787 – 1.1795 in.)

Indicates position from timing belt
side. Install in numerical order
starting from timing belt side.

Indicates direction of housing.
Install so that arrow is directed
toward timing belt side.
6A-18 ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE)
INSTALLATION
1) Before installing valve lash adjuster to cylinder head, fill oil pas-
sage of cylinder head (1) with engine oil according to the follow-
ing procedure.
Pour engine oil through camshaft journal oil holes (2) and check
that oil comes out from oil holes in sliding part of valve lash ad-
juster.
2) Install lash adjuster to cylinder head.
Apply engine oil around valve lash adjuster and then install it to
cylinder head.
3) Install camshaft to cylinder head.
After applying engine oil to camshaft journal and all around cam,
set camshaft to cylinder head so that camshaft timing belt pulley
pin hole (1) in camshaft is at lower position.
4) Install camshaft housing to camshaft and cylinder head.

Apply engine oil to sliding surface of each housing against
camshaft journal.

Apply sealant to mating surface of No.1 and No.3 housings
which will mate with cylinder head.
“A”: Sealant 99000-31110

Embossed marks are provided on each camshaft housing, in-
dicating position and direction for installation.
Install housing as indicated by these marks.

2. No.2 housing
3. No.3 housing
3. Rod
4. Shop cloth
ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-19

As camshaft housing No.1 (1) retains camshaft in proper
position as to thrust direction, make sure to first fit No.1 hous-
ing to No.1 journal of camshaft securely.

After applying engine oil to housing bolts, tighten them tem-
porarily first. Then tighten them by following sequence as
shown in figure.
Tighten a little at a time and evenly among bolts and repeat
tightening sequence three to four times before they are tight-
ened to specified torque.
Special Tool
(A): 09919-16010
Tightening Torque
(a): 11 N
.m (1.1 kg-m, 8.0 lb-ft)
5) Install camshaft oil seal.
After applying engine oil to oil seal lip, press-fit camshaft oil
seal till oil seal surface becomes flush with housing surface.
6) Install camshaft timing belt pulley (1) to camshaft (2) after
installing dwell pin to camshaft.
With locking camshaft as shown in figure, tighten pulley bolt to
specified torque.
Tightening Torque
(b): 60 N
.m (6.0 kg-m, 43.5 lb-ft)
7) Install cylinder head cover to cylinder head as previously out-
lined.
8) Install timing belt, timing belt outside cover, crankshaft pulley,
water pump pulley and water pump belt as previously outlined.
9) Install distributor case and distributor.
Refer to Section 6F for installation.
10) Install air cleaner assembly as previously outlined.
11) Connect negative cable at battery.
12) Adjust ignition timing.
Refer to Section 6F for adjustment.

6A-20 ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE)
CAUTION:

Don’t turn camshaft or start engine (i.e., valves should not be operated) for about half an hour after
reinstalling hydraulic valve lash adjusters and camshaft. As it takes time for valves to settle in place,
operating engine within half an hour after their installation may cause interference to occur between
valves and piston.

If air is trapped in valve lash adjuster, valve may make tapping sound when engine is operated after
valve lash adjuster is installed. In such a case, run engine for about half an hour at about 2,000 – 3,000
r / min., and then air will be purged and tapping sound will cease. Should tapping should not cease,
it is possible that valve lash adjuster is defective. Replace it if defective.
If defective adjuster can’t be located by hearing among 6 of them, check as follows.
1) Stop engine and remove cylinder head cover.
2) Push adjuster downward by hand (with less than 15 kg or 33 lbs force) when cam crest is not on
adjuster to be checked and check if clearance exists between cam and adjuster. If it does, adjuster
is defective and needs replacement.
VALVE LASH ADJUSTER NOISE DIAGNOSIS
In case of the followings, valve lash adjuster noise may be caused by air trapped into valve lash adjusters.

Vehicle is left for 24 hours or more.

Engine oil is changed.

Hydraulic lash adjuster is replaced or reinstalled.

Engine is overhauled.
If noise from valve lash adjusters is suspected, perform the following checks.
1) Check engine oil for the followings.

Oil level in oil pan
If oil level is low, add oil up to Full level hole on oil level gauge.

Oil quality
If oil is discolored, or deteriorated, change it.
For particular oil to be used, refer to Section 0B.

Oil leaks
If leak is found, repair it.

Oil pressure (refer to Oil Pressure Check in this section)
If defective pressure is found, repair it.
2) Run engine for about half an hour at about 2,000 to 3,000 r / min., and then air will be purge and tapping sound
will cease.
3) Should tapping sound not cease, it is possible that hydraulic valve lash adjuster is defective.
Replace it if defective.
If defective adjuster can’t be located by hearing among 16 of them, check as follows.
a) Stop engine and remove cylinder head cover.
b) Push adjuster downward by hand (with less than 20 kg or 44 lbs. Force) when cam crest is not on adjuster
to be check if clearance exists between cam and adjuster.
If it does, adjuster is defective and needs replacement.

1. Cylinder head
2. Cylinder head bolt
3. Valve guide
4. Cylinder head gasket:
“TOP” mark provided on
gasket comes to crankshaft
pulley side, facing up
(toward cylinder head side).
5. Pin
6. Camshaft
7. Valve lash adjuster
8. Valve cotters
9. Valve spring retainer
10. Valve spring:
Be sure to position spring in place with
its bottom end (small-pitched) facing the
bottom (valve spring seat side).11. Valve stem seal
12. Valve spring seat
13. Exhaust valve
14. Intake valve
15. Oil seal
16. Gasket
17. Camshaft housing bolt: Tightening Torque
: Do not reuse
: Apply engine oil to sliding
: surfaces of each part.
ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-21
VALVES AND CYLINDER HEAD
INSPECTION
Valve Guides
Using a micrometer and bore gauge, take diameter readings on
valve stems and guides to check stem-to-guide clearance.
Be sure to take reading at more than one place along the length of
each stem and guide.
If clearance exceeds limit, replace valve and valve guide.
Item
StandardLimit
Valve stemIn5.457 – 5.480 mm
(0.2148 – 0.2157 in.)———
diameterEx5.440 – 5.455 mm
(0.2142 – 0.2148 in.)———
Valve guide
I.D.In &
Ex5.500 – 5.512 mm
(0.2165 – 0.2170 in.)———
Stem-to-
guide
In0.020 – 0.055 mm
(0.0008 – 0.0021 in.)0.07 mm
(0.0027 in.)
guide
clearanceEx0.045 – 0.072 mm
(0.0018 – 0.0028 in.)0.09 mm
(0.0035 in.)

09916-56011
Valve guide installer09917-98221
Valve stem seal installer09918-08210
Vacuum gauge hose joint09919-16010
Deep socket
09924-17810
Flywheel holder09926-18210
Oil seal guide (Vinyl resin)
ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-31
REQUIRED SERVICE MATERIALS
MATERIALSRECOMMENDED
SUZUKI PRODUCTUSE
Sealant
SUZUKI BOND NO. 1207C
(99000-31150)
Mating surfaces of cylinder block and oil pan.
SealantSUZUKI BOND NO. 1215
(99000-31110)
Mating surfaces of camshaft housings
(No.1 & No.3) and cylinder head.

6A1
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-1
SECTION 6A1
ENGINE MECHANICAL
(G13B, 1-CAM 16-VALVES ENGINE)
WARNING:
For vehicles equipped with Supplement Restraint (Air Bag) System:

Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under “Gener-
al Description” in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and “Service Precau-
tions” under “On-Vehicle Service” in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either or these two conditions may
result in severe injury.

Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
CONTENTS
GENERAL DESCRIPTION6A1- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine6A1- 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Lubrication6A1- 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Block6A1- 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft and Main Bearings 6A1- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pistons, Rings, Piston Pins and Connecting Rods 6A1- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head and Value Train 6A1- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON VEHICLE SERVICE6A1- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compression Check6A1- 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Vacuum Check6A1- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Check6A1- 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Lash (Clearance)6A1- 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Element6A1-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Outlet Hose6A1-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Cover6A1-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Throttle Body and Intake Manifold 6A1-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Manifold6A1-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing Belt and Belt Tensioner 6A1-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pan and Oil Pump Strainer 6A1-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump6A1-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rocker Arms, Rocker Arm Shaft and Camshaft 6A1-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valves and Cylinder Head6A1-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piston, Piston Rings, Connecting Rods and Cylinders 6A1-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNIT REPAIR OVERHAUL6A1-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Assembly6A1-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Bearings, Crankshaft and Cylinder Block 6A1-68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS6A1-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIALS6A1-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATIONS6A1-82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTE:
For what each abbreviation stands for (i.e., full term), refer to SECTION 0A.