3.19
ENGINE
3
3. Measure height of each cam lobe using a micrometer.
Compare to specifications.
4. Measure camshaft journal outside diameter (O.D.)
5. Measure ID of camshaft journal bore.
Calculate oil clearance by subtracting journal OD from
journal bore ID. Compare to specifications.
NOTE: Replace camshaft if damaged or if any part is
worn past the service limit.
NOTE: Replace cylinder head if camshaft journal bore is
damaged or worn excessively.
Cylinder Head Removal
1. Remove the two 6mm flange bolts (A) from cylinder head.
See next exploded view on next page.
2. Loosen each of the four cylinder head bolts (B) evenly 1/8
turn each time in a criss-cross pattern until loose.
3. Remove bolts (B) and tap cylinder head lightly with a
plastic hammer until loose. CAUTION: Tap only in
reinforced areas or on thick parts of cylinder head casting
to avoid damaging the thread.
4. Remove cylinder head and head gasket.
Camshaft Journal O.D.:
Mag & PTO End: 1.4935-1.4941”
(37.935- 37.950 mm)
Camshaft Journal I.D.:
Mag & PTO End: 1.4963-1.4970”
(38.005- 38.025 mm)
Camshaft Oil Clearance:
Std: .0022-.0035” (.055-.090 mm)
Limit: .0039” (.10 mm)
Journal
Journal O.D
B
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