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4-16 ENGINE TOP END
.Apply engine oil to the O-ring, install the spark plug
retainer.
*If the valve clearance is not within the specified range,
first record the clearance, and then adjust it.
.To change the valve clearance, replace the shim with
one of a different thickness.
NOTE
0 Mark and record shim locations so they can be
reinstalled in their original positions.
.To select a new shim which brings the valve clearance
within the specified range.
0 Remeasure any valve clearance that was adjusted.
Readjust if necessary.
1 .Split Keeper
2. Retainer
3. Valve Spring
4. Closed Coil End
5. Spring Seat
6. Oil Seal
7. Valve Stem
Valve Removal
.Perform the following.
O Using the valve spring compressor assembly (special
tool), remove the valve.
Valve Guide Removal
.Using the valve guide arbor (special tool), tap out the
valve guide.
"'--'
~
(D;
"
0
A. Valve Spring Compressor Assembly: 57001-241
B. Adapter: 57001 -1272
C. Valve Spring Compressor Joint: 57001 -1271
1. Valve Guide Arbor: 57001-1273
NOTE
CHeat the area around the valve guide to 120- 150 oC
(248 -302°F).
Valve Installation
.Replace the oil seal with a new one.
.Applya thin coat of molybdenum disulfid~ grease to the
valve stem before valve installation.
.Install the springs so that the closed coil end faces
downwards.
Valve Guide Installation
.Using the valve guide arbor (special tool), drive the
valve guide until its flange touches the cylinder head.
NOTE
OHeat the area around the valve guide hole to 120 -
1500C (248 -302°F).
OApply oil to the valve guide outer surface before valve
guide installation.
.Using the valve guide reamer (special tool), ream the
valve guide.