Mitsubishi Grandis. Manual — part 641
TIMING BELT
ENGINE MECHANICAL
11A-41
CAUTION
When tightening the mounting bolt, ensure that
the timing belt tensioner pulley does not rotate
with the bolt. Allowing it to rotate with the bolt
can cause deficient tension of the belt.
6. With special tool tensioner wrench (MD998767)
and torque wrench, apply tension torque 3.5 N
⋅m
to the valve timing belt, and tighten the timing belt
tensioner pulley mounting bolt to the specified
torque.
Tightening torque: 48
± 5 N⋅m
7. Remove wire or pin inserted to timing belt
tensioner adjuster.
8. Remove special tool adjusting bolt (MD998738),
and install the rubber plug to the timing belt under
cover.
9. Rotate crankshaft clockwise two turns, and leave
it for about 15 minutes.
10.Insert wire or pin removed in Step 7 again, and
ensure that it can be pulled out with a light load.
When wire or pin can be lightly removed,
appropriate tension is applied on timing belt. In
this case, remove wire or pin.
Also the projection of timing belt tensioner
adjuster rod (A) is within the standard value,
appropriate tension is applied.
Standard value (A): 3.8
− 4.5 mm
11.If wire or pin cannot be easily pulled out, repeat
Step 1 through Step 9 to reach proper valve timing
belt tension.
AC301859
MD998767
AB
AC301857AB
Wire or pin
AC301452AB
MD998738
Timing belt
under cover
AC301857AB
Wire or pin
AC301375
AB
A
Rod
TIMING BELT
ENGINE MECHANICAL
11A-42
CAUTION
Always check the tightening torque of the
crankshaft pulley centre bolt when turning the
crankshaft pulley centre bolt anti-clockwise.
Re-tighten if it is loose.
12.Check again that the timing marks on sprockets
are aligned.
INSPECTION
M1112004400501
TIMING BELT TENSIONER ADJUSTER
CHECK
1. Check for oil leak from seal, and replace it if leak
is detected.
2. Check for wear or damage at the top of the rod.
Replace it, if required.
3. Hold the timing belt tensioner adjuster by hand,
and press top end of the rod onto the metal (e.g.
cylinder block) under a pressure of 98
− 196 N to
measure the movement of the rod.
Standard value: Within 1 mm
A: Length when it is free (not pressed)
B: Length when it is pressed
A
− B: Movement
4. If the measured value is out of the standard value,
replace the timing belt tensioner adjuster.
BALANCER TIMING BELT TENSION
CHECK
Check the balancer timing belt tension in the
following procedures.
1. Apply a pressure of approximately 100 N at the
centre (arrow area) between the sprocket as
shown in the figure, then inspect whether the
flexure is within the standard value.
Standard value: 5
− 10 mm
2. If not within the standard value, adjust the belt
tension. (Refer to
AC301866
AB
Timing mark
Crankshaft
camshaft
drive sprocket
Camshaft
sprocket
Timing mark
Timing mark
Engine oil pump
sprocket
AC301376
AB
A
B
98 – 196 N
Rod
Movement
AC301405AB
Deflection
Approximately 100 N
ENGINE ASSEMBLY
ENGINE MECHANICAL
11A-43
ENGINE ASSEMBLY
REMOVAL AND INSTALLATION
M1112001001091
CAUTION
*: indicates parts which should be temporarily tightened, and then fully tightened with the engine
weight applied on the vehicle body.
Pre-removal Operation
• Fuel Line Pressure Reduction [Refer to GROUP 13A,
On-vehicle Service
− Fuel Pump Relay Disconnection
(How to Reduce Pressurized Fuel Lines)
• Engine room side cover (RH) Removal.
• Engine Oil Draining (Refer to GROUP 12, On-vehicle
Service
− Engine Oil Replacement
• Engine Coolant Draining (Refer to GROUP 14, On-vehicle
Service
− Engine Coolant Replacement
• Transmission Oil Draining (Refer to GROUP 22A,
On-vehicle Service
− Transmission Oil Replacement
).
• Catalytic Converter Removal (Refer to GROUP 15,
Exhaust Pipe and Main Muffler
).
• Front Exhaust Pipe Removal (Refer to GROUP 15,
Exhaust Pipe and Main Muffler
).
• Hood Removal (Refer to GROUP 42, Hood
• Engine Cover Removal (Refer to
• Air Cleaner Removal (Refer to GROUP 15, Air Cleaner
).
• Battery and Battery Tray Removal.
Post-installation Operation
• Battery and Battery Tray Installation
• Air Cleaner Installation (Refer to GROUP 15, Air Cleaner
).
• Engine Cover Installation (Refer to
• Hood Installation (Refer to GROUP 42, Hood
).
• Front Exhaust Pipe Installation (Refer to GROUP 15,
Exhaust Pipe and Main Muffler
• Catalytic Converter Installation (Refer to GROUP 15,
Exhaust Pipe and Main Muffler
• Transmission Oil Refilling (Refer to GROUP 22A,
On-vehicle Service
− Transmission Oil Replacement
).
• Engine Coolant Refilling (Refer to GROUP 14, On-vehicle
Service
− Engine Coolant Replacement
).
• Engine Oil Refilling (Refer to GROUP 12, On-vehicle
Service
− Engine Oil Replacement
).
• Fuel Leak Check
• Drive Belt Tension Check (Refer to
• Engine room side cover (RH) Installation.
ENGINE ASSEMBLY
ENGINE MECHANICAL
11A-44
AC312968AB
1
7
5
4
3
2
5.0 ± 1.0 N·m
9.0 ± 2.0 N·m
9.0 ± 2.0 N·m
14 ± 3 N·m
6
Removal steps
1.
Control wiring harness connection
2.
Battery wiring harness connection
3.
Canister vacuum hose connection
>>F<<
4.
Brake booster vacuum hose
connection
5.
Power steering oil pressure sensor
connector
6.
Engine oil level sensor connector
<<A>>
7.
Drive belt
Removal steps (Continued)
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