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5-30 ENGINE TOP END
Valves
Valve Clearance Inspection
•
Refer to the Valve Clearance Inspection in the Periodic
Maintenance chapter.
Valve Clearance Adjustment
•
Refer to the Valve Clearance Adjustment in the Periodic
Maintenance chapter.
Valve Removal
•
Remove:
Cylinder Head (see Cylinder Head Removal)
Valve Lifter and Shim
NOTE
â—‹
Mark and record the valve lifter and shim locations so
they can be installed in their original positions.
•
Using the valve spring compressor assembly, remove the
valve.
Special Tools - Valve Spring Compressor Assembly [A]:
57001-241
Valve Spring Compressor Adapter,
24 [B]:
57001-1586
Valve Installation
•
Replace the oil seal with a new one.
•
Apply a thin coat of molybdenum disulfide grease to the
valve stem before valve installation.
•
Install the springs so that the closed coil end faces down-
wards.
Valve Stem [A]
Oil Seal [B]
Spring Seat [C]
Closed Coil End [D]
ValveSpring[E]
Retainer [F]
Split Keepers [G]
Valve Guide Removal
•
Remove:
Valve(seeValveRemoval)
Oil Seal
Spring Seat
•
Heat the area around the valve guide to 120 ∼ 150°C (248
∼ 302°F), and hammer lightly on the valve guide arbor [A]
to remove the guide from the top of the head.
NOTICE
Do not heat the cylinder head with a torch. This will
warp the cylinder head. Soak the cylinder head in
oil and heat the oil.
Special Tool - Valve Guide Arbor, 4.5: 57001-1331
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