oil temperature ISUZU TROOPER 1995 User Guide

6-16 ENGINE DIAGNOSIS
ENGINE OIL PRESSURE CHECK
1. Check for dirt, gasoline or water in the engine
oil.
a. Change the oil if dirt, gasoline, or water
are present.
b. Check the viscosity of the oil.
c. Change the oil if the viscosity is outside
the specified standard.
d. Refer to the "Maintenance and Lubrication"
section of this manual.
2. Check the engine oil level.
The level should fall somewhere between the
"ADD" and the "FULL" marks on the oil level
dipstick.
If the oil level does not reach the "ADD" mark
on the
oil level dipstick, engine oil must be
added.
3. Remove the oil pressure unit.
4. Install an oil pressure gage.
5. Start the engine and allow the engine to reach
normal operating temperature (About 80°C).
6. Measure the oil pressure.
Oil pressure should be:
7. Stop the engine.
392-550 kPa (56.9-80.4 psi)
at
3000 rpm.
8. Remove the oil pressure gage.
9. Install the oil pressure unit.
10. Start the engine and check for leaks.
m ... cw
•

Attach the piston to the connecting rod with the
piston
front mark and the connecting rod mark
on the same side (Fig. 6A-104).
Fig. 6A-104
• With special tool and a press, press fit the
piston pin (Fig. 6A-105).
1®1 Piston pin service set: J-24086-C
NOTE:
J-24086-900 J-24086-281
Fig. 6A-105
J-24086-5A
Heat the connecting rod small end to a suitable
temperature to ensure smooth installation.
8. Piston ring
r=1 • Install the piston rings with the piston ring
1=.1 expander.
The compression ring
must be set with the T
mark facing up (Fig. 6A-106).
GENERAL ENGINE MECHANICAL &A-35
T mark (No.1 comp), T2 mark (No.2 comp)
Fig. 6A-106
1 ... 1• Install piston rings in the following sequence.
1. Oil ring
CD Expander ring
® Upper side rail
® Lower side rail
2. 2nd Compression ring
3. 1st compression ring
• The compression rings must be set with the T
or
T2 mark facing up. (Fig. 6A-1 07).
•
1st compression ring: T
• 2nd compression ring: T2
• After installation, apply engine oil to the entire
circumference
of the piston rings.
Check to see that all the rings rotate smoothly.
Fig. 6A-107
7. Piston and connecting rod assembly
• Insert
the bearings into the connecting rods
and caps.
Apply new engine oil to the bearing faces and
nuts.
• Tighten the connecting rod cap nuts
1~1 Torque N·m (lb·ft) 54 (40)

6A1-26 ENGINE (V& 3.2L DOHC AND SOHC)
1••1 REMOVAL
Preparation: Battery ground cable
1. Air cleaner assembly
2. Radiator upper fan shroud
• Remove from radiator.
3. Cooling fan assembly
• Remove four nuts, then the cooling fan
assembly.
4. Accelerator Pedal cable
• Disconnect from throttle body and cable
bracket.
5. Vacuum booster hose
• Disconnect from common chamber.
6. Connectors
• Disconnect from Manifold Absolute Pressure,
canister Vacuum Switching Valve (VSV),
Exhaust
Gas Recirculation VSV, Intake Air
Temperature and ground cable.
7. High tension cables
• Disconnect from cylinder head cover.
8. Ignition Control Module assembly
• Disconnect three Electronic Ignition con­
nectors.
• Remove three Electronic Ignition bracket fixing
bolts, and remove Electronic
Ignition assembly
with high tension cables.
9. Throttle body
• Remove four fixing bolts.
10. Vacuum hoses
• Disconnect vacuum hoses on canister VSV and
Exhaust Gas Recirculation
VSV from the
throttle body.
11. Positive Crankcase Ventilation hose
• Disconnect from common chamber.
12. Fuel Pressure Control Valve vacuum hose
• Disconnect from common chamber.
13. Evaporative Emission Canister Purge hose
• Disconnect from common chamber.
14. Exhaust Gas Recirculation Valve assembly
• Remove five bolts from common chamber,
exhaust manifold and cylinder head cover.
15. Common chamber
• Remove six bolts, two nuts and three bracket
fixing bolts, then remove the
common
chamber.
16. Fuelhoses
• Disconnect feed and return fuel hoses from fuel
pipes, and remove
two bracket fixing bolts on
the cylinder head cover.
17. Power steering pump drive belt
18. Air Conditioning compressor drive belt
19. Generator drive belt
20. Power steering pump
21. Fan pulley assembly
22. Crankshaft pulley assembly
lf5\l • Using special tool J-8614-01, hold crankshaft
t:::!il pulley.
•
Remove center bolt, then the pulley.
23. Oil cooler hose
• Remove two cooler hose bracket fixing bolts on
the timing belt cover.
24. Timing belt cover
25. Pusher
CAUTION:
The pusher prevents air from entering the oil chamber.
Its rod must always be facing upward.
26. Timing belt
CAUTIONS:
1) Do not bend or twist the belt, otherwise its core
could
be damaged. The belt should not be bent at
a radius less than 30mm.
2) Do not allow oil or other chemical substances to
come in contact with the belt. They will shorten
the belt life.
3) Do not attempt to pry or stretch the belt with a
screwdriver
or any other tool during installation.
4) Store timing belt in a cool and dark place. Never
expose the belt
to direct sunlight or heat.
27. Cylinder head cover
• Remove 11 fixing bolts, then the cylinder head
cover.
28. Camshaft
• Camshaft pulley fixing bolt and camshaft pulley
•
Front plate fixing bolts and front plate
• Camshaft bracket fixing bolts and camshaft
29. Rocker arm
• Fixing bolts and rocker arm
I••! INSTALLATION
29. Rocker arm
• Tighten bolts to the specified torque.
For the tightening order, see Fig. 6A 1-34.
~~~ Torque N·m (lb·ft) 18 (13)
Fig. 6A1-34
•

6A1-30 ENGINE (V& 3.2L DOHC AND SOHC)
· ;~; E) REMOVAL
Preparation: Battery ground cable
1. Air cleaner assembly
2. Radiator upper fan shroud
• Remove from radiator.
3. Cooling fan assembly
• Remove four nuts, then the cooling fan
assembly.
4. Accelerator Pedal cable
• Disconnect from throttle body and cable
bracket.
5. Canister vacuum hose
• Disconnect from vacuum pipe.
6. Air vacuum hose
• Disconnect from common chamber.
7. Connectors
• Disconnect from Manifold Absolute, Canister
Vacuum Switching Valve
(VSV), Exhaust Gas
Recirculation
VSV, Intake Air Temperature and
ground cable.
8. High tension cables
• Disconnect from cylinder head cover.
9. Ignition Control Module assembly
• Disconnect three Electronic Ignition
connectors.
• Remove three Electronic Ignition bracket fixing
bolts, and remove Electronic
Ignition assembly
with high tension cables.
10. Throttle body
• Remove four fixing bolts.
11. Vacuum hoses
• Disconnect vacuum hoses on canisterVSVand
Exhaust
Gas Recirculation VSV from the
throttle body.
12. Positive Crankcase Ventilation hose
• Disconnect from common chamber.
13. Fuel Pressure Control Valve vacuum hose
• Disconnect from common chamber.
14. Evaporative Emission Canister Purge hose
• Disconnect from common chamber.
15. Exhaust Gas Recirculation Valve assembly
• Remove five bolts from common chamber,
exhaust manifold and cylinder head cover.
16. Common chamber duct
• Remove four bolts, four nuts and three bracket
fixing bolts, then remove the
common
chamber duct.
• Disconnect ground cable from rear side of
common chamber.
17. Common chamber
• Remove six bolts, two nuts and three bracket
fixing bolts, then remove the
common
chamber.
18. Fuel hoses
• Disconnect feed and return fuel hoses from fuel
pipes, and remove two bracket fixing bolts on
the cylinder head cover.
19. Power steering pump drive belt
20. Air Conditioning compressor drive belt
21. Generator drive belt
22. Power steering pump
23. Fan pulley assembly
24.
Crankshaft pulley assembly
1i0iJ • Using special tool J-8614-01, hold crankshaft
~ pulley.
•
Remove center bolt, then the pulley.
25. Oil cooler hose
• Remove two cooler hose bracket fixing bolts on
the timing belt cover.
26. Timing belt cover
27. Pusher
\fl CAUTION:
Yl The pusher prevents air from entering the oil
chamber.
Its rod must always be facing upward.
28. Timing belt
\fl CAUTIONS:
Yl 1) Do not bend or twist the belt, otherwise its
core could be damaged. The belt should
not
be bent at a radius less than 30mm.
2) Do not allow oil or other chemical substances
to come in contact
with the belt. They will
shorten the belt life.
3) Do not attempt to pry or stretch the belt with a
screwdriver
or any other tool during
installation.
4) Store timing belt in a cool and dark place.
Never expose the
belt to direct sunlight or
heat.
29. Cylinder head cover
• Remove 11 fixing bolts, then the cylinder head
cover.
30. Camshaft
• Camshaft pulley fixing bolt and camshaft pulley
•
Front plate fixing bolts and front plate
• Camshaft bracket fixing bolts and camshaft
31. Swing arm
• After removing the swing arm, attach a tag
showing the place
for swing arm.
32. Hydraulic lash adjuster (HLA)
• After removing the HLA, attach a tag showing
the place
for HLA.
\fl CAUTIONS:
Yl 1) Protect precision HLA from dust and foreign
materials.
2) Do not disassemble the HLA.
3) To clean the HLA, use a clean diesel oil.
•

6A1-34 ENGINE (V6 3.2L DOHC AND SOHC)
1••1 REMOVAL
Preparation:
Battery ground cable
1. Air cleaner assembly
2. Radiator upper fan shroud
• Remove from radiator.
3. Cooling fan assembly
• Remove four nuts, then the cooling fan
assembly.
4. Accelerator Pedal cable
• Disconnect from throttle body and cable
bracket.
5. Canister vacuum hose
• Disconnect from vacuum pipe.
6. Vacuum booster hose
• Disconnect from common chamber.
7. Connectors
• Disconnect from Manifold Absolute Pressure,
canister Vacuum Switching Valve (VSV),
Exhaust Gas Recirculation VSV, Intake Air
Temperature and ground cable.
8. High tension cables
• Disconnect from cylinder head cover.
9. Ignition Control Module assembly
• Disconnect three Electronic Ignition con­
nectors.
• Remove three Electronic Ignition bracket fixing
bolts, and remove Electronic Ignition assembly
with high tension cables.
10. Throttle body
• Remove four fixing bolts.
11. Vacuum hoses
• Disconnect vacuum hoses on canister VSV and
Exhaust Gas Recirculation
VSV from the
throttle body.
12. Positive Crankcase Ventilation hose
• Disconnect from common chamber.
13. Fuel Pressure Control Valve vacuum hose
• Disconnect from common chamber.
14. Evaporative Emission Canister Purge hose
• Disconnect from common chamber.
15. Exhaust Gas Recirculation Valve assembly
• Remove five bolts from common chamber,
exhaust manifold and cylinder head cover.
16. Common chamber duct
• Remove four bolts, four nuts and three bracket
fixing
bolts, then remove the common
chamber duct.
• Disconnect ground cable from rear side of
common chamber.
17. Common chamber
• Remove six bolts, two nuts and three bracket
fixing
bolts, then remove the common
chamber.
18. Fuel hoses
• Disconnect feed and return fuel hoses from fuel
pipes, and remove two bracket fixing bolts on
the cylinder head cover.
19. Power steering pump drive belt
20.
Air Conditioning compressor drive belt
21. Generator drive belt
22. Power steering pump
23.
Fan pulley assembly
24. Crankshaft pulley assembly
liQil • Using special tool J-8614-01, hold crankshaft
~ pulley.
• Remove center bolt, then the pulley.
25. Oil cooler hose
• Remove two cooler hose bracket fixing bolts on
the
timing belt cover.
26. Timing belt cover
27. Pusher
\fl CAUTION:
'V The pusher prevents air from entering the oil
chamber. Its rod must always be facing upward.
28. Timing belt
\fl CAUTIONS:
'V 1) Do not bend or twist the belt, otherwise its
core could be damaged. The
belt should not
be bent at a radius less than 30mm.
2) Do not allow oil or other chemical substances
to come in contact with the belt. They will
shorten the belt life.
3) Do not attempt to pry or stretch the belt with a
screwdriver or any other tool during
installation.
4) Store timing belt in a cool and dark place.
Never expose the
belt to direct sunlight or
heat.
29. Cylinder head cover
• Remove 11 fixing bolts, then the cylinder head
cover.
30. Camshaft timing pulley
31. Front plate
32. Camshaft brackets
33. Chain tensioner fixing
bolts
34. Camshaft
• Remove the camshaft with chain and chain
tensioner.
35. Oil seal and camshaft end plug
II

E) REMOVAL
Preparation: Battery ground cable
1. Air cleaner assembly
2. Radiator upper fan shroud
• Remove from radiator.
3. Cooling fan assembly
• Remove four nuts, then the cooling fan
assembly.
4. Accelerator Padal cable
• Disconnect from throttle body and cable
bracket.
5. Canister vacuum hose
• Disconnect from vacuum pipe.
6. Vacuum booster hose
• Disconnect from common chamber.
7. Connectors
• Disconnect from Manifold Absolute Pressure,
canister Vacuum
Switching Valve (VSV),
Exhaust Gas Recirculation VSV, Intake Air
Temperature and ground cable.
8. High tension cables
• Disconnect from cylinder head cover.
9.
Ignition Control Module assembly
• Disconnect three Electronic Ignition con­
nectors.
• Remove three Electronic Ignition bracket fixing
bolts, and remove Electronic Ignition assembly
with high tension cables.
10.
Throttle body
• Remove four fixing bolts.
11. Vacuum hoses
• Disconnect vacuum hoses on canister VSV and
Exhaust Gas Recirculation
VSV from the
throttle body.
12.
Positive Crankcase Ventilation hose
• Disconnect from common chamber.
13.
Fuel Pressure Control Valve vacuum hose
• Disconnect from common chamber.
14.
Evaporative Emission Canister Purge hose
• Disconnect from common chamber.
15.
Exhaust Gas Recirculation Valve assembly
• Remove five bolts from common chamber,
exhaust
manifold and cylinder head cover.
16.
Common chamber duct (DOHC)
• Remove four bolts, four nuts and three bracket
fixing
bolts, then remove the common
chamber duct.
• Disconnect ground cable from rear side of
common chamber.
ENGINE (V6 3.2L DOHC AND SOHC) 6A1-39
17. Common chamber
• Remove six bolts, two nuts and three bracket
fixing
bolts, then remove the common
chamber.
18.
Fuelhoses
• Disconnect feed and return fuel hoses from fuel
pipes, and remove two bracket fixing bolts on
the
cylinder head cover.
19.
Power steering pump drive belt
20. Air Conditioning compressor drive belt
21. Generator drive belt
22. Power steering pump
23. Fan pulley assembly
24. Crankshaft pulley assembly
~ • Using special tool J-8614-01, hold crankshaft
~ pulley.
•
Remove center bolt, then the pulley.
25. Oil cooler hose
• Remove two cooler hose bracket fixing bolts on
the timing
belt cover.
26.
Timing belt cover
27. Pusher
\fl CAUTION:
'if The pusher prevents air from entering the oil
chamber. Its rod must always be facing upward.
28.
Timing belt
CAUTIONS:
1) Do not bend or twist the belt, otherwise its
core
could be damaged. The belt should not
be bent at a radius less than 30mm.
2) Do not allow oil or other chemical substances
to come in contact
with the belt. They will
shorten the belt life.
3) Do not attempt to pry or stretch the belt with a
screwdriver
or any other tool during
installation.
4) Store timing belt in a cool and dark place.
Never expose the belt to direct sunlight or
heat.
29.
Cylinder head cover
30. Camshaft
• Camshaft pulley fixing bolt and camshaft pulley
•
Front plate fixing bolts and front plate
• Chain
tensioner fixing bolts (DOHC) and
camshaft bracket fixing
bolts
•
Camshaft, oil seal and camshaft end plug
31. Swing arm (DOHC)
32. Rocker
arm (SOHC)
•
Fixing bolt and rocker arm
33.
Spark plugs
• Keep valve in home position by feeding the
compressed air to the
cylinder from spark plug
hole.

EJ REMOVAL
Preparation: • Remove engine hood.
• Drain radiator Engine Coolant.
• Disconnect battery ground cable.
1. Air cleaner assembly
2. Radiator upper fan shroud
• Remove from radiator.
3. Radiator fan assembly
• Remove four nuts, then the radiator fan
assembly.
4. Accelerator Pedal cable
• Disconnect from throttle body and cable
bracket.
5. Canister vacuum hose
6. Vacuum booster hose
• Disconnect from common chamber.
7. Connectors
• Disconnect from Manifold Absolute Pressure,
canister Vacuum Switching
Valve (VSV),
Exhaust Gas Recirculation VSV,
Intake Air
Temperature and ground cable.
8. High tension cables
• Disconnect from cylinder head cover.
9. Ignition Control Module assembly
• Disconnect three Electronic Ignition con­
nectors.
• Remove three Electronic Ignition bracket fixing
bolts, and remove Electronic Ignition assembly
with high tension cables.
10. Throttle body
• Remove four fixing bolts.
11. Vacuum hoses
• Disconnect vacuum hoses on canister VSV and
Exhaust Gas Recirculation VSV
from the
throttle body.
12. Positive Crankcase Ventilation hose
• Disconnect from common chamber.
13. Fuel Pressure Control Valve vacuum hose
• Disconnect from common chamber.
14. Evaporative Emission Canister Purge hose
• Disconnect from common chamber.
15. Exhaust Gas Recirculation assembly
16. Common chamber
• Remove six bolts, two nuts and four bracket
fixing bolts, then remove the
common
chamber.
17. Throttle body
• Disconnect Engine Coolant hose from throttle
body.
• Disconnect Idler Air Control Valve and Throttle
Position Sensor connectors.
ENGINE (V6 3.2L DOHC AND SOHC) 6A1-43
18. Fuelhoses
• Disconnect feed and return fuel hoses from fuel
pipes, and remove two bracket fixing bolts on
the cylinder head cover.
19. Fuel injector connectors
• Disconnect connectors from injectors.
• Disconnect thermo sensor connector.
20. Intake manifold
• Remove two fixing bolts and four nuts.
21. Engine Coolant manifold
• Disconnect heater hose.
• Remove four fixing bolts.
22. Power steering pump drive belt
23. Air Conditioning compressor drive belt
24. Generator drive belt
25. Power steering pump
26.
Fan pulley assembly
27. Crankshaft pulley assembly
~ • Using special tool J-8614-01, hold crankshaft
~ pulley.
•
Remove center bolt, then the pulley.
28. Oil cooler hose
• Remove two cooler hose bracket fixing bolts on
the timing
belt cover.
29. Timing belt cover
30. Pusher
\fl CAUTION:
VI The pusher prevents air from entering the oil
chamber. Its rod must always be facing upward.
31. Timing belt
\fl CAUTIONS:
VI 1) Do not bend or twist the belt, otherwise its
core
could be damaged. The belt should not
be bent at a radius less than 30mm.
2) Do not allow oil or other chemical substances
to come in contact with the belt. They will
shorten the belt life.
3) Do not attempt to pry or stretch the belt with a
screwdriver
or any other tool during
installation.
4) Store timing belt in a cool and dark place.
Never expose the
belt to direct sunlight or
heat.
32. Cylinder head cover
• Remove 11 fixing bolts, then the cylinder head
cover.
33. Power steering pump bracket
• Disconnect ground cable from bracket.
• Remove five fixing bolts, then the bracket.
34. Exhaust front pipe
35.
Level gage guide tube fixing bolt
• Remove from cylinder head.
36. Cylinder head

1••1 REMOVAL
Preparation: • Remove engine hood.
• Drain radiator Engine Coolant.
•
Disconnect battery ground cable.
1.
Air cleaner assembly
2. Radiator upper fan shroud
• Remove from radiator.
3. Radiator fan assembly
• Remove four nuts, then the radiator fan
assembly.
4. Accelerator Pedal cable
• Disconnect from throttle body and cable
bracket.
5. Canister vacuum hose
• Disconnect from vacuum pipe.
6.
Vacuum booster hose
• Disconnect from common chamber.
7. Connectors
• Disconnect from Manifold Absolute Pressure,
canister Vacuum Switching Valve (VSV),
Exhaust
Gas Recirculation VSV, Intake Air
Temperature and ground cable.
8. High tension cables
• Disconnect from cylinder head cover.
9. Ignition Control Module assembly
• Disconnect three Electronic Ignition con­
nectors.
• Remove three Electronic Ignition bracket fixing
bolts, and remove Electronic
Ignition assembly
with high tension cables.
10. Throttle body
• Remove four fixing bolts.
11.
Vacuum hoses
• Disconnect vacuum hoses on canister VSV and
Exhaust
Gas Recirculation VSV from the
throttle body.
12.
Positive Crankcase Ventilation hose
• Disconnect from common chamber.
13. Fuel Pressure
Control Valve vacuum hose
• Disconnect from common chamber.
14.
Canister vacuum hose
• Disconnect from common chamber.
15.
Exhaust Gas Recirculation Valve assembly
• Remove five bolts from common chamber,
exhaust manifold and cylinder head cover.
16.
Common chamber duct
• Remove four bolts, four nuts and three bracket
fixing bolts, then remove the
common
chamber.
• Disconnect ground cable from rear side of
common chamber.
ENGINE (V6 3.2L DOHC AND SOHC) 6A1 47
17. Throttle body
• Disconnect Engine Coolant hose from throttle
body.
• Disconnect Idle Air Control Valve and Throttle
Position Sensor connectors.
18.
Common chamber
• Remove six bolts and two nuts.
• Remove fixing bolts on common chamber
bracket, then the
common chamber.
19.
Fuelhoses
• Disconnect feed and return fuel hoses from fuel
pipes, and remove
two bracket fixing bolts on
the cylinder head cover.
20. Fuel injector connectors
• Disconnect connectors from injectors.
• Disconnect thermo sensor connector.
21.
Intake manifold
• Remove two fixing bolts and four nuts.
22. Engine
Coolant manifold
• Disconnect heater hose.
• Remove four fixing bolts.
23.
Power steering pump drive belt
24. Air Conditioning compressor drive belt
25. Generator drive belt
26. Power steering pump
27. Fan pulley assembly
28. Crankshaft pulley assembly
I®J • Using special tool J-8614-01, hold crankshaft
pulley.
•
Remove center bolt, then the pulley.
29. Oil cooler hose
• Remove two cooler hose bracket fixing bolts on
the timing belt cover.
30. Timing belt cover
31. Pusher
CAUTION:
The pusher prevents air from entering the oil
chamber. Its rod must always be facing upward.
32.
Timing belt
w CAUTIONS:
' 1) Do not bend or twist the belt, otherwise its
core could
be damaged. The belt should not
be bent at a radius less than 30mm.
2) Do not allow oil or other chemical substances
to come in contact
with the belt. They will
shorten the belt life.
3) Do not attempt to pry or stretch the belt with a
screwdriver
or any other tool during
installation.
4) Store timing belt in a cool and dark place.
Never expose the belt to direct sunlight
or
heat.

68 - 2 ENGINE COOLING
The cooling system is a pressurized Engine Coolant
(EC) forced circulation type which consists of water
pump, thermostat cooling fan, radiator and other
components. The automatic transmission fluid is
cooled by the EC in radiator.
WATER PUMP
Fig. 68-2
The
EC pump is a centrifugal impeller type and is
driven by timing belt. (Fig.68-2)
THERMOSTAT
Jiggle valve
Fig. 68-3
The
thermostat is a wax pellet type with a jiggle
valve and is installed in the thermostat housing.
(Fig.68-3)
RADIATOR
The radiator is a tube type with corrugated fins. In
order to raise the boiling point of coolant, the radiator
is fitted
with a cap in which the valve is operated at
88.2
-117.6 kPa (12.8 - 17.0 psi) pressure. (No oil
cooler
provided for M!f)
Fig. 68-4
ANTI-FREEZE SOLUTION
•
•
Relation between Mixing ratio and Freezing
temperature
of the EC varies with the ratio of
anti-freeze solution in water. Proper mixing
ratio can be determined by referring to the
chart. Supplemental inhibitors or additives
claiming to increase cooling capability that have
not been specifically approved by lsuzu are not
recommended for addition to the cooling
system.
Calculation mixing ratio (Fig. 68-5)
Mixing ratio
Anti-freese
solution (Lit/gal.) =-----------------Anti-freese solution (Lit/gal.) +Water (Lit/gal.)
Note: Anti-freeze solution +Water=
Total cooling system capacity.
Lit (Us
gal)
Total Cooling
M!f 8.5 (2.24) ~-~~--------System Capacity AfT 8.8 (2.32)

Mixing ratio(%) 0 10 20 30 40 50
~
' -10
'
1
' -30

~ -40
In case of 8.5 lit total cooling system capacity
Mixing Anti-freeze
Water: solution: ratio (%) lit. (U.S. gal) lit. (U.S. gal.)
0 0 0
8.5 (2.2) 10 0.9 (0.3) 7.6 (2.0) 15
1.3 (0.4) 7.2 (1.9) 20 1.7 (0.5) 6.8 (1.8)
25 2.1 (0.6) 6.4 (1.7) 30 2.6 (0.7) 5.9 (1.6)
35 3.0 (0.8) 5.5
(1.5) 40 3.4 (0.9) 5.1 (1.3)
45 3.8 (1.0) 4.7 (1.2) 50 4.3 (1.1)
4.2 (1.1)
Fig. 68-5
ENGINE COOLING 68-3
• Mixing ratio
Check
the specific gravity of engine coolant in the
cooling system temperature ranges from oo C to
50° C using a suction type hydrometer, then deter­
mine the densityofthe Engine Coolant by referring
to the table. (Fig. 68-6)
1,100 1'-........ ........ ...... .............. Mixing ratio
~"""--r-... 1'-""' 1,1)90
........ ...... ........ ........ .......... '
1,000
'"" 1,07 o......_ 1'-........ I'-.......... I"-........ .......
I"-........ ..........
................. I"-........
'
1,080
....... I"-........ ~ ........ ......
........ "'" ~"""--r--..... 1,050
r-. ........ ~ .......... ......
---
........ ........ 1,040
r-.... !'--.. 1'-0 '"" ~"""--1'-.... ........ 1,03
1--....... ........ r--~ ........
'
1,020
....... ~ 1'-0 ~"""---.... 1,01
...... ,
'
1,000
10 20 30 40 50 60 70 Coolant temperature ("C)
Fig. 68-6
DIAGNOSIS
ENGINE COOLING TROUBLE
Condition Possible cause Correction
Engine
overheating Low Engine Coolant level Replenish
Thermo unit faulty Replace
Faulty
thermostat Replace
Faulty
Engine Coolant unit Repair or replace
Clogged
radiator Clean or replace
Faulty
radiator cap Replace
Low engine oil level or use of improper Replenish or change oil
engine oil
Clogged exhaust system Clean exhaust system or replace
faulty parts
Faulty Throttle Position sensor Replace throttle valve assembly
Open or shorted Throttle Position sensor circuit Repair or replace
Damaged cylinder head gasket Replace
Engine overcooling Faulty thermostat Replace
Engine slow to Faulty thermostat Replace
warm-up Thermo unit faulty Replace