Inspection And Adjustment Of Valve Clearances - Mitsubishi 6M60-TL Service Manual

GENERAL INSPECTION AND ADJUSTMENT

2. Inspection and Adjustment of Valve Clearances

Service standards (Unit: mm)
Location
– Valve clearance (when cold)
Tightening torque (Unit: N·m {kgf·m})
Mark
– Lock nut (adjusting screw tightening)
– Lock nut (rocker arm adjusting screw tightening)
Special tools
Mark
Socket wrench
11-12
Maintenance item
Parts to be tightened
Tool name and shape
• Valve clearances should be checked and adjusted as follows
[Inspection]
• Remove the rocker cover.
• Bring the No. 1 or No. 6 cylinder piston to the top dead center
• With the No. 1 or No. 6 cylinder piston at TDC, measure the
Standard value
0.6
Tightening torque
Part No.
MH063003
while the engine is still cold.
(TDC) on the compression stroke according to the following pro-
cedure:
• Rotate the crankshaft until the pointer is aligned with the "1 6"
mark on the flywheel.
• This will place either the No. 1 or No. 6 cylinder piston at TDC
on the compression stroke. The cylinder in which the rocker
arms for both the intake and exhaust valves can be pushed
down by hand by the valve clearance amounts has its piston
at TDC. Rotate the engine by one full turn to switch the TDCs
of the No. 1 and No. 6 cylinder pistons.
clearance of the valves (clearance between valve bridge and
pad) marked with a circle in the table below.
Cylinder No. 1
Valve IN EX IN EX IN EX IN EX IN EX IN EX
No. 1 cylinder
piston at TDC on O O
compression stroke
No. 6 cylinder
piston at TDC on –
compression stroke
Limit
–
59 {6.0}
34 {3.5}
Application
Tightening the lock nut
2 3 4
O – – O O –
– – O O – – O
Remedy
Adjust
Remarks
–
–
5 6
– O – –
O – O O