Page 373 of 557

1. Short bolts
2. Long bolts
6A1-78 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
3) Install crankshaft to cylinder block.
4) Install bearing cap to cylinder block, making sure to point arrow
mark (on each cap) to crankshaft pulley side. Fit them sequen-
tially in ascending order, 1, 2, 3, 4 and 5, starting from pulley side.
After installing bearing cap stiffeners, tighten bearing cap bolts
in such order as shown in figure a little at a time and repeat it till
they are tightened to specified torque.
Tightening Torque
(a): 54 N
.m (5.4 kg-m, 39.0 lb-ft)
NOTE:
After tightening cap bolts, check to be sure that crankshaft
rotates smoothly when turning it by 8.0 N
.m (0.8 kg-m, 5.8
lb-ft) torque or below.
5) Install new gasket and oil seal housing.
Do not reuse gasket removed in disassembly. Apply engine oil
to oil seal lip before installation. Tighten housing bolts to specifi-
cation.
Tightening Torque
(a): 11 N
.m (1.1 kg-m, 8.0 lb-ft)
NOTE:
As there are 2 types of housing bolts, refer to figure for their
correct use.
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.
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 or drive plate, and torque its
bolts to specification.
Special Tool
(A): 09924-17810
Tightening Torque
(a): 78 N
.m (7.8 kg-m, 56.5 lb-ft) (Flywheel bolts)
(a): 95 N
.m (9.5 kg-m, 69.0 lb-ft) (Drive plate bolts)
Page 374 of 557
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-79
8) Install pistons and connecting rods as previously outlined.
9) Install oil pump strainer and oil pan as previously outlined.
10) Install cylinder head assembly to cylinder block as previously
outlined.
11) Install camshaft, crankshaft timing belt pulley, timing belt,
crankshaft pulley, water pump pulley, etc., as previously out-
lined.
12) Install clutch to flywheel (for M / T vehicle). For clutch installa-
tion, refer to “CLUTCH” section.
13) Install engine mountings and brackets.
Refer to tightening torque for INSTALLATION of “ENGINE AS-
SEMBLY” in this section.
14) Install engine with transmission to vehicle as previously out-
lined.
Page 375 of 557
1. 09915-64510-001
Compression gauge
2. 09915-64510-002
Connector
3. 09915-64530
Hose
4. 09915-67010
Attachment
09915-67311
Vacuum gauge09918-08210
Vacuum gauge hose joint09915-77311
Oil pressure gauge
09917-18211
Tappet adjuster wrench09919-16020
17 mm socket09926-18210
Oil seal guide (Vinyl resin)09917-68221
Camshaft pulley holder
1. 09916-14510
Valve lifter
2. 09916-14910
Valve lifter attachment
09916-84511
Forceps09916-44910
Valve guide remover09916-34542
Reamer handle
09916-38210
Reamer (11 mm)09916-58210
Valve guide installer handle09916-56011
Valve guide installer
attachment09916-34550
Reamer (5.5 mm)
6A1-80 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
SPECIAL TOOLS
Page 376 of 557
09917-98221
Valve stem seal installer09916-77310
Piston ring compressor09924-17810
Flywheel holder09915-47330
Oil filter wrench
ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-81
REQUIRED SERVICE MATERIALS
MATERIALSRECOMMENDED
SUZUKI PRODUCTUSE
SealantSUZUKI 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.6).
Mating surfaces of CMP sensor case and cylinder
block.
Page 377 of 557

6A1-82 ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE)
TIGHTENING TORQUE SPECIFICATIONS
FASTENING PARTSTIGHTENING TORQUEFASTENING PA R T SN.mkg-mlb-ft
Oil pressure switch131.39.5
Valve adjusting screw lock nuts121.29.0
Cylinder head cover bolts111.18.0
Intake manifold bolts and nuts232.317.0
Timing belt tensioner stud111.18.0
Timing belt tensioner bolt252.518.0
Timing belt cover bolts and nut111.18.0
Exhaust manifold bolts and nuts323.223.5
Crankshaft pulley bolt161.611.5
Crankshaft timing belt pulley bolt13013.094.0
Exhaust pipe nuts and bolts505036 5Exhaust manifold stiffener nut505.036.5
Oil pump strainer bolt and stay bolt111180Oil pan bolts and nuts111.18.0
CKP sensor bolt101.07.5
Oil pan drain plug505.036.0
Oil pump rotor plate screws111180Oil pump case bolts111.18.0
Camshaft housing bolts111180Rocker arm shaft bolts111.18.0
Camshaft timing belt pulley bolt606.043.5
Cylinder head venturi plug3.50.352.5
Cylinder head bolts686.849.0
Connecting rod bearing cap nuts353.525.5
Crankshaft main bearing cap bolts545.439.0
Flywheel bolts787.856.5
Drive plate bolts959.569.0
Engine mounting & bracket bolts and nutsRefer to INSTALLATION of
ENGINE ASSEMBLY in this section.
Page 378 of 557

6B
ENGINE COOLING 6B-1
SECTION 6B
ENGINE COOLING
NOTE:
For the descriptions (items) not found in this section, refer to the same section of Service Manual men-
tioned in FOREWORD of this manual.
CONTENTS
GENERAL DESCRIPTION6B-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS6B-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE6B-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant6B-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System Flush and Refill 6B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE6B-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Water Pipes or Hoses6B-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostat6B-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Pump6B-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page 379 of 557
8. Heater inlet hose
9. Heater outlet hose
10. Radiator
11. Oil cooler (A / T only)
12. Engine
13. ECT sensor1. Radiator inlet hose
2. Radiator outlet hose
3. Water intake pipe
4. Thermostat
5. Water pump
6. IAC valve (throttle body)
7. Breather pipe (air cleaner
outlet hose)
6B-2 ENGINE COOLING
GENERAL DESCRIPTION
COOLING SYSTEM CIRCULATION
During engine warm-up (thermostat closed), the water pump discharges coolant into the water jacket chamber
adjacent to No.1 cylinder. Coolant then flows through the cylinder block and the cylinder heat. Coolant then returns
to the water pump through intake manifold, heater inlet hose, heater unit, heater outlet hose, and water intake pipe.
During normal temperatures (thermostat open), coolant takes the same basic route but is now allowed to flow past
the thermostat, the inlet hose and the radiator, and then back to the water pump through the outlet hose and the
water intake pipe.
Page 380 of 557

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. ± 2.8C (5.0F)
Temp. at which valve
begins to open88C (190F)
Temp. at which valve
become fully open100C (212F)
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.