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.)
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.
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.)
1. Cylinder block
2. Front oil seal
3. Main bearing
4. Bearing cap
5. Cap washer
6. Cap bolt
7. Timing pulley key
8. Crankshaft
9. Thrust bearing:
Set oil grooves of bearing to weds.
10. Rear oil seal
11. Pin
12. Oil seal housing gasket
13. Oil seal housing
14. Housing bolt
15. Input shaft bearing
16. Flywheel
17. Flywheel bolt
: Tightening Torque
: Do not reuse
: Apply engine oil to sliding
: surfaces of each part.
78 N.m (7.8 kg-m)
12 N
.m (1.2 kg-m)
ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-27
MAIN BEARINGS, CRANKSHAFT AND CYLINDER BLOCK
REMOVAL
1) Remove engine with transmission from body as previously out-
lined.
2) Remove transmission from engine, and then remove clutch and
flywheel (drive plate for A / T).
3) Remove water pump belt, generator bracket, crankshaft pulley,
timing belt, and crankshaft timing belt pulley etc.
4) Remove cylinder head assembly.
5) Remove oil pan and oil pump strainer.
6) Remove pistons and connecting rods.
7) Remove oil pump and oil seal housing.
8) Remove main bearing caps and crankshaft.
ENGINE MECHANICAL (G10, 1-CAM 6-VALVES ENGINE) 6A-29
5) Install oil seal housing and its gasket.
Install new gasket. Do not reuse gasket removed in disassem-
bly. Oil lip portion of oil seal before installing. Tighten housing
bolts to specification.
After installing oil seal housing, gasket edges might bulge out;
if so, cut them off to make them flush with cylinder block and
oil seal housing.
Tightening Torque
(b): 12 N
.m (1.2 kg-m, 9.0 lb-ft)
6) Install oil pump.
Refer to item “Oil pump” for installation of oil pump.
7) Install flywheel (M / T model) or drive plate (A / T model).
Using special tool, lock flywheel and torque its bolts (1) to spec-
ification.
Special Tool
(A): 09924-17810
Tightening Torque
(c): 78 N
.m (7.8 kg-m, 56.5 lb-ft)
8) Install pistons and connecting rods as previously outlined.
9) Install oil pump strainer and oil pan.
10) Install cylinder head assembly to cylinder block (1).
Before installing cylinder head assembly to cylinder block,
install check valve (2) into oil gallery in cylinder block, directing
slit of valve toward top of cylinder block.
NOTE:
Tighten cylinder head bolts to specified torque as pre-
viously outlined.
Whenever installing cylinder head to new cylinder block,
use following procedure to tighten cylinder head bolts.
Tighten cylinder head bolts to specified torque as pre-
viously outlined and loosen them once till tightening
torque becomes “zero”. And then torque them to specifi-
cation again.
11) Install crankshaft timing belt pulley, timing belt, crankshaft
pulley, water pump pulley, etc., as previously outlined.
12) Install clutch to flywheel (M / T model).
For clutch installation, refer to Section 7C.
13) Install engine with transmission to body as previously outlined.
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.
3
3
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-13
CYLINDER HEAD COVER
REMOVAL
1) Disconnect negative cable at battery.
2) Disconnect breather hose (2) and PCV valve (3) from head cov-
er.
3) Disconnect ignition coil couplers (6).
4) Remove ignition coil assemblies (5) with high-tension cord (4).
5) Remove cylinder head cover (1) with cylinder head cover gasket
and O-rings.
INSTALLATION
1) Install O-rings (3) and cylinder head cover gasket (2) to cylinder
head cover (1).
NOTE:
Be sure to check each of these parts for deterioration or any
damage before installation and replace if found defective.
2) Install cylinder head cover to cylinder head and tighten cover
bolts to specified torque.
Tightening Torque
(a): 11 N
.m (1.1 kg-m, 8.0 lb-ft)
NOTE:
When installing cylinder head cover, use care so that cylin-
der head cover gasket or O-rings will not get out of place or
fall off.
3) Install ignition coil assemblies (5) with high-tension cord (4).
4) Connect ignition coil couplers (6).
5) Connect breather hose (2) and PCV valve (3) to head cover (1).
6) Connect negative cable at battery.
1. Long bolt
2. Short bolt
6A1-16 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
10) Remove intake manifold rear stiffener (1) and generator adjust
arm reinforcement (2) from intake manifold (3).
11) Remove intake manifold with throttle body from cylinder head,
and then its gasket.
INSTALLATION
Reverse removal procedure for installation noting the followings.
Use new intake manifold gasket.
When installing intake manifold, install clamps securely.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
Adjust accelerator cable play, referring to Section 6E.
Check to ensure that all removed parts are back in place.
Reinstall any necessary parts which have not been reinstalled.
Refill cooling system referring to Section 6B.
Upon completion of installation, turn ignition switch ON but en-
gine OFF and check for fuel leaks.
Finally, start engine and check for engine coolant leaks.