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

6-1-98 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
Ignition
switch
Main
fuseMain relay
Relay boxNo.1 injector
No.2 injector
No.3 injector
No.4 injector Fuse box
TABLE B-1 FUEL INJECTOR CIRCUIT CHECK
INSPECTION
STEPACTIONYESNO
1Was “ENGINE DIAG. FLOW TABLE” performed?Go to Step 2.Go to “ENGINE DIAG.
FLOW TABLE”.
2Check Injector for Operating Sound.
Using sound scope, check each injector for operating
sound at engine cranking.
Do all 4 injector make operating sound?Fuel injector circuit is
in good condition.Go to Step 3.
3Dose none of 4 injectors make operating sound at
Step 2?Go to Step 4.Check coupler
connection and wire
harness of injector
not making operatingnot making o erating
sound and injector
itself (Refer to Section
6E2).
4Check power circuit of injectors for open and short.
Is it normal?Check all 4 injectors
for resistance
respectively.
If resistance is OK,
substitute a known-
good ECM (PCM) and
recheck.Power circuit open or
short.

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)

2
IN
EX (A)
1
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-9
VALVE LASH (CLEARANCE)
1) Remove negative cable at battery.
2) Remove cylinder head cover referring to item “Cylinder Head
cover”.
3) Remove engine under cover of right side from body.
4) Using special tool and wrench (1), turn crankshaft pulley clock-
wise until “V” mark (2) (in white paint) on pulley aligns with “0”
(zero) calibrated on timing belt cover.
Special Tool
(A): 09919-16020
5) See if the rocker arms of No.1 cylinder are off the respective cam
lobes (of camshaft); if so, valves (1), (2), (5) and (7) in figure are
ready for clearance checking and adjustment. Check valve
lashes at valves (1), (2), (5) and (7).
If the rocker arms of No.4 cylinder are off the respective cam
lobes, check valve lashes at valves (3), (4), (6) and (8).
NOTE:
When checking valve clearance, insert thickness gauge be-
tween camshaft and cam-riding face of rocker arm.

1. Clamp
1. Long bolt
2. Short bolt
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-23
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 first and then tensioner bolt
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): 25 N
.m (2.5 kg-m, 18.0 lb-ft)
7) Install timing belt outside cover.
Before installing, make sure that seal is between water pump
and oil pump case.
Tightening Torque
(a): 11 N
.m (1.1 kg-m, 8.0 lb-ft)
8) With crankshaft locked, remove crankshaft timing belt pulley
bolt (4).
9) Install crankshaft pulley (2).
Fit hole of pulley to pin (1) on crankshaft timing belt pulley, and
tighten pulley bolts (3) to specified torque.
Tightening Torque
(a): 16 N
.m (1.6 kg-m, 11.5 lb-ft)
10) With crankshaft locked using flat end rod or the like, tighten
crankshaft timing belt pulley bolt (4).
Tightening Torque
(b): 130 N
.m (13.0 kg-m, 94.0 lb-ft)
11) Clamp harness securely.

2. Arrow mark
4. Oil hole
The oil hole should
come on intake side
1. Arrow mark
2. 1st ring end
gap
3. 2nd ring end
gap and oil ring
spacer gap
4. Oil ring upper
rail gap
5. Oil ring lower
rail gap
6. Intake side
7. Exhaust side Crankshaft
pulley side
Circlip
or
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-61
c) Stamped number on piston and that on cylinder block should
correspond. That is, install number 2 stamped piston to cylinder
which is identified with number 2 and a number 1 piston to cylin-
der with number 1.
PistonCylinder
Number
at the
top
(mark)
Outer diameterNumber
(mark)Bore diameter
Piston-to-cylinder
clearance
1
73.98 – 73.99 mm
(2.9126 –
2.9130 in.)
1
74.01 – 74.02 mm
(2.9138 –
2.9141 in.)0.02 – 0.04 mm
(0.0008 –
0.0015 in.)
2
73.97 – 73.98 mm
(2.9122 –
2.9126 in.)
2
74.00 – 74.01 mm
(2.9134 –
2.9138 in.)0.02 – 0.04 mm
(0.0008 –
0.0015 in.)
Also, a letter A, B or C is stamped on piston head but ordinarily
it is not necessary to discriminate each piston by this letter.
1) Install piston pin to piston (1) and connecting rod (3):
After applying engine oil to piston pin and piston pin holes in pis-
ton and connecting rod, fit connecting rod to piston as shown in
figure and insert piston pin to piston and connecting rod, and
install piston pin circlips.
NOTE:
Circlip should be installed with its cut part facing either up
or down as shown in figure.
2) Install piston rings to piston:

As indicated in figure, 1st and 2nd rings have “RN” or “R” mark
respectively. When installing these piston rings to piston, di-
rect marked side of each ring toward top of piston.

1st ring (1) difffers from 2nd ring (2) in thickness, shape and
color of surface contacting cylinder wall.
Distinguish 1st ring from 2nd ring by referring to figure.

When installing oil ring (3), install spacer first and then two
rails.
3) After installing three rings (1st, 2nd and oil rings), distribute their
end gaps as shown in figure.

6A1-72 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
5) Remove cap and using scale (2) on gaging plastic (1) envelope,
measure gaging plastic width at its widest point. If clearance ex-
ceeds its limit, replace bearing. Always replace both upper and
lower inserts as a unit.
A new standard bearing may produce proper clearance. If not,
it will be necessary to regrind crankshaft journal for use of 0.25
mm undersize bearing.
After selecting new bearing, recheck clearance.
StandardLimit
Bearing clearance0.020 – 0.040 mm
(0.0008 – 0.0016 in.)0.060 mm
(0.0023 in.)
Selection of main bearings
STANDARD BEARING:
If bearing is in malcondition, or bearing clearance is out of specifica-
tion, select a new standard bearing according to the following pro-
cedure and install it.
1) First check journal diameter by using the following procedure.
As shown in figure, crank webs (1) of No.2 and No.3 cylinders
have five stamped numerals.
Three kinds of numerals (“1”, “2” and “3”) represent the following
journal diameters.
Numeral stamped
Journal diameter
144.994 – 45.000 mm
(1.7714 – 1.7716 in.)
244.988 – 44.994 mm
(1.7712 – 1.7714 in.)
344.982 – 44.988 mm
(1.7709 – 1.7712 in.)
The first, second, third, fourth and fifth (left to right) stamped nu-
merals represent journal diameters at bearing caps “1”, “2”, “3”,
“4” and “5” respectively.
For example, in figure, the first (leftmost) numeral “3” indicates
that journal dia. at bearing cap “1” is within 44.982 – 44.988 mm,
and second one “1” indicate that journal dia. at cap “2” is within
44.994 – 45.000 mm.

1. Paint
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-73
2) Next, check bearing cap bore diameter without bearing. On mat-
ing surface of cylinder block, four alphabets are stamped as
shown in figure.
Three kinds of alphabets (“A”, “B” and “C”) represent the follow-
ing cap bore diameters.
Alphabet stamped
Bearing cap bore diameter
(without bearing)
A49.000 – 49.006 mm
(1.9291 – 1.9294 in.)
B49.006 – 49.012 mm
(1.9294 – 1.9296 in.)
C49.012 – 49.018 mm
(1.9296 – 1.9298 in.)
The first, second, third, fourth and fifth (left to right) stamped al-
phabets reperesent cap bore diameters of bearing caps “1”, “2”,
“3”, “4” and “5”, respectively.
For example, in figure, the first (leftmost) alphabet “B” indicates
that cap bore dia. of bearing cap “1” is within 49.006 – 49.012
mm, and the fifth (rightmost) alphabet “A” indicates that cap bore
dia. of cap “5” is within 49.000 – 49.006 mm.
3) There are five kinds of standard bearings differing in thickness.
To distinguish them, they are painted in the following colors at
the position as indicated in figure.
Each color indicates the following thickness at the center of
bearing.
Color painted
Bearing thickness
Green1.996 – 2.000 mm
(0.0786 – 0.0787 in.)
Black1.999 – 2.003 mm
(0.0787 – 0.0788 in.)
Colorless
(no paint)2.002 – 2.006 mm
(0.0788 – 0.0789 in.)
Yellow2.005 – 2.009 mm
(0.0789 – 0.0790 in.)
Blue2.008 – 2.012 mm
(0.0790 – 0.0791 in.)

1. Cooling fan motor
2. Radiator
ENGINE COOLING 6B-3
THERMOSTAT
A wax pellet type thermostat is used in the coolant outlet passage
to control the flow of engine coolant, to provide fast engine warm
up and to regulate coolant temperatures.
A wax pellet element is hermetically contained in a metal case, and
expands when heated and contracts when cooled.
When the pellet is heated and expands, the metal case pushes
down the valve to open it.
As the pellet is cooled, the contraction allows the spring to close the
valve.
Thus, the valve remains closed while the coolant is cold, preventing
circulation of coolant through the radiator.
At this point, coolant is allowed to circulate only throughout the en-
gine to warm it quickly and evenly.
As the engine warms, the pellet expands and the thermostat valve
opens, permitting coolant to flow through the radiator.
In the top portion of the thermostat, an air bleed valve (1) is pro-
vided; this valve is for venting out the gas or air, if any, that is accu-
mulated in the circuit.
Thermostat functional spec. ± 2.8
C (5.0
F)
Temp. at which valve
begins to open88
C (190
F)
Temp. at which valve
become fully open100
C (212
F)
COOLING FAN
The cooling fan is driven by electric motor, and the motor is acti-
vated by ECM / PCM (engine coolant temp.). For its details, refer to
Section 6E.
WARNING:
Keep hands, tools, and clothing away from engine cooling
fan to help prevent personal injury. This fan is electric and
can come on whether or not the engine is running. The fan
can start automatically in response to the ECM / PCM (en-
gine coolant temp.) with the ignition switch in the “ON”
position.

6E1-16 ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10)
1. Injector
1
3
2
1. Injector cavity
2. Lower O-ring
3. Upper O-ring
1. Positive terminal
REMOVAL
NOTE:
Use care when handling fuel injector especially not to damage
filter and its needle.
Also, because injector is an electrical component, it should
not be immersed in any type of liquid solvent or cleaner, or it
may get damaged.
1) Relieve fuel pressure, referring to Section 6.
2) Disconnect battery negative cable at battery.
3) Remove air cleaner assembly referring to Section 6A.
4) Remove air cleaner mounting stay from throttle body.
5) Remove injector wire and then remove fuel injector from throttle
body.
INSPECTION
Check fuel injector filter for evidence of dirt and contamination. If
present, clean and check for presence of dirt in fuel lines and fuel
tank.
INSTALLATION
1) Apply thin coat of spindle oil or gasoline to new upper and lower
O-rings, install lower O-ring and upper O-ring to injector.
2) Install injector by pushing it straight into fuel injector cavity.
Never turn injector while pushing it.

6E1-30 ENGINE AND EMISSION CONTROL SYSTEM (TBI FOR G10)
1. Insulator
2. Lower gasket
3. Heater
1. Intake manifold
2. EFE heater
1. EFE heater relay
2. Relay box
1. Radiator fan motor
INSPECTION

Check lower gasket for damage and deterioration. Replace as
necessary.

Check heater and insulator for crack, corrosion or any other dam-
age. Replace as necessary.
INSTALLATION
1) Clean mating surfaces of throttle body and intake manifold that
mate with EFE heater.
2) Install EFE heater to intake manifold.
Use new upper gasket.
3) Install throttle body according to procedure described previous-
ly.
4) Connect EFE heater coupler.
EFE HEATER RELAY
INSPECTION
1) Disconnect negative cable at battery.
2) Remove EFE heater relay from relay box.
3) Structure of EFE heater relay is the same as that of main relay.
Check its resistance and operation using the same procedure as
that for main relay.
If found defective, replace.
RADIATOR FAN CONTROL SYSTEM
SYSTEM INSPECTION
WARNING:
Keep hands, tools, and clothing away from engine cooling
fan to help prevent personal injury. This fan is electric and
can come on whether or not the engine is running. The fan
can start automatically in response to the ECT sensor with
the ignition switch in the “ON” position.
Connect SUZUKI scan tool (2) to DLC (3).
Start engine and keep it running to warm it up.
Now check to ensure that radiator fan is started when the coolant
temperature displayed on SUZUKI scan tool reaches 96C
(205F).
If check result is not satisfactory, check RFC relay, wire harness,
ECT sensor, ECM, coolant temp. meter and sender gauge unit.
Refer to “DTC P0480 FLOW TABLE” of Section 6 and “COOLANT
TEMP. METER AND GAUGE UNIT” of Section 8.