Inspection: Valve-To-Valve Guide Clearance; Replacement Of Valve Guides; Inspection: Contact Between Valve And Valve Seat - Mitsubishi 6M60-TL Service Manual

CYLINDER HEAD AND VALVE MECHANISM
11-36
Refacing
• Limit grinding to a necessary minimum.
• If the valve margin is below the limit after grinding, replace the
valve.
• After grinding, make sure to lap the valve and valve seat.

Inspection: Valve-to-valve guide clearance

• If the clearance exceeds the specified limit, replace the defective
part(s).

Replacement of valve guides

[Removal]
[Installation]
• Install the valve guide until
CAUTION
• The valve guide must protrude from the cylinder head by
the specified amount. Correct installation can only be pos-
sible by using .
• The valve guides for the exhaust valves are longer than the
valve guides for the inlet valves.

Inspection: Contact between valve and valve seat

• Before starting inspection, check that the valve and valve guide
are intact.
• Apply an even coat of red lead to the valve contact surface of the
valve seat.
• Strike the valve once against the valve seat. Do not rotate the
valve during this operation.
sits snugly on the cylinder head.