Mitsubishi Montero (2004+). Manual — part 126
12-1
GROUP 12
ENGINE
LUBRICATION
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .
SPECIAL TOOL . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE. . . . . . . . . . .
ENGINE OIL CHECK . . . . . . . . . . . . . . . . .
ENGINE OIL REPLACEMENT . . . . . . . . . .
ENGINE OIL FILTER REPLACEMENT . . .
ENGINE OIL PRESSURE CHECK . . . . . . .
ENGINE OIL COOLER . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . . . . . .
SPECIFICATIONS . . . . . . . . . . . . . . .
FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS . . . . . . . . . . .
SEALANT . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION
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ENGINE LUBRICATION
12-2
GENERAL DESCRIPTION
M1121000100283
The lubrication method is a fully force-fed, full-flow filtration type.
ENGINE OILS
WARNING
Prolonged and repeated contact with mineral oil will result in the removal of natural fats from
the skin, leading to dryness, irritation and dermatitis. In addition, used engine oil contains
potentially harmful contaminants which may cause skin cancer. Adequate means of skin pro-
tection and washing facilities must be provided.
.
Recommended Precautions
The most effective precaution is to adapt working
practices which prevent, as far as practical, the risk
of skin contact with mineral oils i.e. use enclosed
systems for handling used engine oil and decrease
components, where practical, before handling them.
.
Other precautions:
• Avoid prolonged and repeated contact with oil,
particularly used engine oil.
• Wear protective clothing, including impervious
gloves where practical.
• Avoid contaminating clothes, particularly under
wear, with oil.
• Do not put oily rags in pockets.
• Do not wear heavily soiled clothing and
oil-soaked foot-wear. Overalls must be cleaned
regularly and kept separate from personal cloth-
ing.
• Where there is a risk of eye contact, eye protec-
tion should be worn i.e. chemical goggles or face
shields. In addition, an eye wash facility should
be provided.
• Obtain First Aid treatment immediately for open
cuts and wounds.
• Wash regularly with soap and water to ensure all
oil is removed, especially before meals (skin
cleansers and nail brushes will help). After clean-
ing, apply lotion, etc., containing lanolin to
replace natural skin oils is advised.
• Do not use gasoline, kerosene, diesel fuel, gas
oil, thinners or solvents for cleaning skin.
• Apply barrier creams before each work period to
help cleam the skin after work.
• If skin disorders develop, obtain medical advice
immediately.
SPECIAL TOOL
M1121000600426
ITEMS
SPECIFICATIONS
Oil pump type
Trochoid type
Drive method
Crankshaft
TOOL
TOOL NUMBER AND
NAME
SUPERSESSION
APPLICATION
MD998054
Engine oil pressure
switch wrench
General service tool or
MD998054-01
Removal and installation
of engine oil pressure
switch
ON-VEHICLE SERVICE
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ENGINE LUBRICATION
12-3
ON-VEHICLE SERVICE
ENGINE OIL CHECK
M1121000900267
1. Pull out the oil dipstick slowly and check that the oil level is
within the marks on the oil dipstick.
2. Check that the oil is not excessively dirty, that there is no
coolant or gasoline mixed in, and that it is sufficiently thick
and slippery.
ENGINE OIL REPLACEMENT
M1121001000289
Start the engine and allow it to warm up until the temperature of
the coolant reaches 80
°C (176°F) to 90°C (194°F).
WARNING
Use care as oil could be hot.
1. Remove the engine oil filler cap.
2. Remove the drain plug to drain oil.
3. Install a new drain plug gasket so that it faces in the
direction shown in the illustration, and then tighten the drain
plug to the specified torque.
Tightening torque: 39
± 5 N⋅m (29 ± 3 ft-lb)
4. Refill the specified quantity of oil.
Specified Engine Oil: Engine oils displaying ILSAC
certification symbol ("Starburst" symbol) or conform-
ing the API classification SJ EC or SJ/CD EC
Total quantity: 4.9 dm
3
(5.14 quarts)
5. Install the engine oil filler cap.
6. Check oil level.
ENGINE OIL FILTER REPLACEMENT
M1121001100297
Start the engine and allow it to warm up until the temperature of
the coolant reaches 80
°C (176°F) to 90°C (194°F).
WARNING
Use care as oil could be hot.
1. Remove the engine oil filler cap.
ACX00892AB
GOOD
MAXIMUM
MINIMUM
ACX01795AB
DRAIN PLUG
GASKET
OIL PAN SIDE
39
± 5 N
·
m
29
± 3 ft-lb
ACX00887AB
ON-VEHICLE SERVICE
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ENGINE LUBRICATION
12-4
2. Remove the drain plug to drain oil.
3. Use the commercially-available tool to remove the engine oil
filter.
4. Clean the filter bracket side mounting surface and ensure
the old O-ring has been removed.
5. Apply a small amount of engine oil to the O-ring of the new
oil filter.
6. Where the oil filter O-ring touches the oil pan flange, tighten
the oil filter to the specified torque using the
commercially-available tool.
Tightening torque: Approximately 3/4 turn[14
± 2 N⋅m
(124
± 18 in-lb)]
7. Install the drain plug and refill engine oil. (Refer to Engine
Oil Replacement
.)
8. Rev the engine a few times, and check to be sure that no
engine oil leaks from the installation section of the oil filter.
ENGINE OIL PRESSURE CHECK
M1121002300380
Required Special Tool:
MD998054: Engine Oil Pressure Switch Wrench
1. Check engine oil quantity.
2. Remove the engine oil pressure switch terminal.
CAUTION
Since sealant is applied to the thread of the engine oil
pressure switch, take care not to damage the engine oil
pressure switch when removing it.
3. Use special tool MD998054 to remove the engine oil
pressure switch.
4. Install the engine oil pressure gauge.
NOTE: Use a 1/8 pipe thread adapter.
5. Run the engine to warm it.
6. After the engine has been warmed up, check that engine oil
pressure is within the standard value.
Standard value:
At idle: 29 kPa (4.2 psi) or more
At 3,500 r/min: 294
− 686 kPa (43 − 100 psi)
7. Remove the engine oil pressure gauge.
ACX00395
COMMERCIALLY-
AVAILABLE TOOL
AD
ACX00396
O-RING
AB
AK301582
ENGINE OIL
PRESSURE SWITCH
CYLINDER BLOCK
OIL FILTER
BRACKET
AB
AKX00294
MD998054
AB
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