Page 559 of 687

Downloaded from www.Manualslib.com manuals search engine 6A1-78 ENGINE MECHANICAL (M13 ENGINE)
Install seal ring and exhaust pipe to exhaust manifold.
Tighten pipe fasteners to specified torque.
Tightening torque
Exhaust pipe bolts (a) : 50 N·m (5.0 kg-m, 36.5 lb-ft)
6) Reverse disconnected hoses, cables and electric wires for
connection.
7) Install air cleaner outlet hoses.
8) Install radiator with cooling fan and connect A/T fluid hoses
(vehicle with A/T), radiator inlet and outlet hoses referring to
“Water Pump Belt and Cooling Fan” and “Radiator” in Sec-
tion 6B.
9) Adjust generator belt tension referring to “Water Pump Belt
Tension” in Section 6B.
10) Adjust A/C compressor and/or P/S pump belt tension (if
equipped) referring to “Compressor Drive Belt” in Section 1B
or “Power Steering Belt” in Section 3B1.
11) Adjust accelerator cable play referring to “Accelerator Cable
Adjustment” in Section 6E.
12) Check to ensure that all removed parts are back in place.
Reinstall any necessary parts which have not been rein-
stalled.
13) Refill cooling system with coolant engine with engine oil and
A/T with specified A/T fluid (vehicle with A/T).
14) Connect negative cable at battery.
15) Verify that there is no fuel leakage, coolant leakage, oil leak-
age, A/T fluid leakage (vehicle with A/T) and exhaust gas
leakage at each connection.
Page 563 of 687

Downloaded from www.Manualslib.com manuals search engine 6A1-82 ENGINE MECHANICAL (M13 ENGINE)
Tighten bearing cap No.1 bolts (1) – (10) and No.2 bolts (11) –
(20) gradually as follows.
1) Tighten bolts (1) – (10) to 30 N·m (3.0 kg-m, 22.0 lb-ft)
according to numerical order in figure.
2) In the same manner as in Step 1), tighten them to 50 N·m
(5.0 kg-m, 36.5 lb-ft).
3) In the same manner as in step 1), retighten them to 60°.
4) Tighten bolts (11) – (20) to 22 N·m (2.2 kg-m, 16.0 lb-ft)
according to numerical order in figure.
Tightening torque
Crankshaft bearing cap No.1 bolts (1) – (10) :
50 N·m (5.0 kg-m, 36.5 lb-ft) and extra tightening 60°
Crankshaft bearing cap No.2 bolts (11) – (20) :
22 N·m (2.2 kg-m, 16.0 lb-ft)
Use a dial gauge to read displacement in axial (thrust) direction of
crankshaft.
If its limit is exceeded, replace thrust bearing with new standard
one or oversize one to obtain standard thrust play.
Crankshaft thrust play
Standard : 0.11 – 0.31 mm (0.0043 – 0.0122 in.)
Limit : 0.35 mm (0.0138 in.)
Out-of-round and taper of journals
An unevenly worn crankshaft journal shows up as a difference in
diameter at a cross section or along its length (or both). This dif-
ference, if any, is determined by taking micrometer readings. If
any one of journals is badly damaged or if amount of uneven
wear in the sense explained above exceeds its limit, regrind or
replace crankshaft.
Crankshaft out-of-round and taper
Limit : 0.01 mm (0.0004 in.)
Out-of-round : A – B
Taper : a – b
Main Bearings
General information
Service main bearings are available in standard size and
0.25 mm (0.0098 in.) undersize, and each of them has 5
kinds of bearings differing in tolerance.
NOTE:
After checking the thrust play, check for thread deforma-
tion of each bearing cap No.1 bolt according to previous
mentioned “Main Bearing Cap No.1 Bolt” once again.
Page 573 of 687

Downloaded from www.Manualslib.com manuals search engine 6A1-92 ENGINE MECHANICAL (M13 ENGINE)
8) Install rear oil seal housing (1) and tighten bolts to specified
torque by using special tool.
Special tool
(A) : 09911-97720
Tightening torque
Rear oil seal housing bolts : 11 N·m (1.1 kg-m, 8.0 lb-ft)
9) Install flywheel (drive plate for A/T).
Using special tool, lock flywheel or drive plate, and tighten
flywheel or drive plate bolts applied with sealant to specifica-
tion.
“A” : Sealant 1215 99000-31110
Special tool
(A) : 09924-17810
Tightening torque
Flywheel or drive plate bolts
(a) : 70 N·m (7.0 kg-m, 51.0 lb-ft)
10) Install the following parts to engine as previously outlined.
Piston and connecting rod
Cylinder head assembly
Camshaft, tappet and shim
Timing chain guide, chain tensioner adjuster, chain ten-
sioner, timing chain and crankshaft timing sprocket
Timing chain cover
Cylinder head cover
Intake manifold and exhaust manifold
Oil pan and oil pump strainer
11) Install clutch to flywheel (vehicle with M/T) referring to
“Clutch Cover, Clutch Disc, Flywheel and Release Bearing”
in Section 7C.
12) Install engine assembly to vehicle referring to “Engine
Assembly” in this section.
A : Crankshaft side
Page 578 of 687

Downloaded from www.Manualslib.com manuals search engine ENGINE COOLING 6B-1
6B
SECTION 6B
ENGINE COOLING
CONTENTS
General Description ........................................6B-2
Cooling System Circulation ........................... 6B-2
Radiator Cap ................................................. 6B-3
Coolant Reservoir ......................................... 6B-3
Water Pump .................................................. 6B-4
Thermostat .................................................... 6B-4
Cooling Fan Clutch ........................................ 6B-4
Coolant (Water) Temperature Gauge............ 6B-4
Diagnosis .........................................................6B-5
Maintenance ....................................................6B-6
Coolant .......................................................... 6B-6
Coolant Level ................................................ 6B-7
Cooling System Service ................................ 6B-7Cooling System Flush and Refill ................... 6B-8
Water Pump Belt Tension ............................. 6B-9
On-Vehicle Service ....................................... 6B-10
Cooling System Component ....................... 6B-10
Coolant Draining ......................................... 6B-11
Cooling Water Pipes or Hoses .................... 6B-11
Thermostat .................................................. 6B-11
Water Pump Belt and Cooling Fan ............. 6B-13
Radiator ...................................................... 6B-14
Water Pump ................................................ 6B-15
Required Service Material ............................ 6B-17
Tightening Torque Specification ................. 6B-17
Page 586 of 687

Downloaded from www.Manualslib.com manuals search engine ENGINE COOLING 6B-9
9) Run engine, with radiator cap removed, until radiator upper
hose is hot.
10) With engine idling, add coolant to radiator until level reaches
the bottom of filler neck. Install radiator cap, making sure
that the ear of cap lines up with reservoir hose.
Water Pump Belt Tension
1) Inspect belt for cracks, cuts, deformation, wear and cleanli-
ness. If it is necessary to replace belt, refer to “Water Pump
Belt and Cooling Fan” in this section.
2) Check belt for tension. Belt is in proper tension when it
deflects 4.5 to 5.5 mm (0.18 – 0.22 in.) under thumb pres-
sure (about 10 kg or 22 lb.).
Water pump belt tension
“a” : 4.5 – 5.5 mm (0.18 – 0.22 in.) as deflection / 10 kg (22
lbs)
3) If belt is too tight or too loose, adjust it to proper tension by
displacing generator position.
4) Tighten generator adjusting bolt and pivot bolts as specified
torque.
Tightening torque
Generator adjusting bolt (a) : 23 N·m (2.3 kg-m, 17.0 lb-ft)
Generator pivot bolts (b) : 50 N·m (5.0 kg-m, 36.0 lb-ft)
5) Connect negative cable at battery terminal.WARNING:
Disconnect negative cable at battery before checking and
adjusting belt tension.
NOTE:
When replacing belt with a new one, adjust belt tension
to 3 – 4 mm (0.12 – 0.16 in.).
Page 588 of 687
Downloaded from www.Manualslib.com manuals search engine ENGINE COOLING 6B-11
Coolant Draining
1) Remove radiator cap (1).
2) Loosen drain plug on radiator to drain coolant.
3) After draining coolant, be sure to tighten drain plug securely.
4) Fill cooling system. Refer to “Coolant” in this section.
Cooling Water Pipes or Hoses
REMOVAL
1) Drain cooling system.
2) To remove water pipes or hoses, loosen screw on each pipe
or hose clip and pull hose end off.
INSTALLATION
Install removed parts in reverse order of removal procedure, not-
ing the following.
Tighten each clamp bolt securely.
Refill cooling system with proper coolant, referring to
description on “Coolant” and “Cooling System Flush and
Refill” in this section.
Thermostat
REMOVAL
1) Drain cooling system and tighten drain plug.
2) Remove intake manifold, referring to “Throttle Body and
Intake Manifold” in Section 6A1.
3) Disconnect thermostat cap (1) from thermostat case (2).
4) Remove thermostat (3).
Page 589 of 687

Downloaded from www.Manualslib.com manuals search engine 6B-12 ENGINE COOLING
INSPECTION
1) Make sure that air bleed valve (1) of thermostat is clear.
Should this valve be clogged, engine would tend to overheat.
2) Check valve seat for some foreign matters being stuck which
prevent valve from seating tight.
3) Check thermostatic movement of wax pellet as follows:
a) Immerse thermostat (1) in water, and heat water gradually.
b) Check that valve starts to open at specification temp.
c) If valve starts to open at a temperature substantially below
or above, thermostat unit should be replaced with a new
one.
Such a unit, if re-used, will bring about overcooling or over-
heating tendency.
Thermostat functional specification
INSTALLATION
1) When positioning the thermostat (2) on the thermostat case
(1), be sure to align its air breather valve (3) with mark (4).
2) Install thermostat cap (5) to thermostat case with align air
bleed valve and mark.
Then, tighten mounting bolts to specified torque.
Tightening torque
Thermostat cap bolts
(a) : 11 N·m (1.1 kg-m, 8.0 lb-ft)
Thermostat case bolts
(b) : 25 N·m (2.5 kg-m, 18.0 lb-ft)
3) Install intake manifold by referring to “Throttle Body and
Intake Manifold” in Section 6A1.
4) Fill the cooling system.
Temp. at which valve begins
to open80 – 84 °C (176 – 183 °F)
Temp. at which valve
becomes fully open93 – 97 °C (199 – 207 °F)
Valve liftMore than 8 mm at 95 °C
(203 °F)
2. Thermometer
3. Heater
Page 590 of 687

Downloaded from www.Manualslib.com manuals search engine ENGINE COOLING 6B-13
Water Pump Belt and Cooling Fan
REMOVAL
1) Remove radiator shroud securing bolts (1).
2) Remove radiator by referring to “Radiator” in this section.
3) Loosen water pump drive belt tension.
4) Remove cooling fan by removing securing nuts.
Remove power steering and/or compressor drive belt before
removing water pump belt.
5) Remove pump belt.
INSTALLATION
Once cooling fan or water pump belt has been removed, make
sure to tighten bolts and nuts securely in reinstallation and adjust
pump belt tension to specification. For specified tension, refer to
“Water Pump Belt Tension” in this section.
WATER PUMP BELT TENSION INSPECTION
1) Check belt tension. It should be within specification. Refer to
“Water Pump Belt Tension” in this section.
2) If tension is out of specification, adjust it.
For its adjustment, refer to “Water Pump Belt Tension” in this
section.
After adjustment, be sure to tighten bolts.
COOLING FAN CLUTCH INSPECTION
Inspect fluid coupling for oil leakage.
If necessary, replace fan clutch assembly. Do not disassemble
clutch assembly.