ENGINE
3.19
CAMSHAFT INSPECTION
1. Visually inspect each cam lobe for wear, chafing or
damage.
2. Thoroughly clean the cam shaft, making sure the oil
feed holes are not obstructed.
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.
6. Calculate oil clearance by subtracting journal OD from
journal bore ID. Compare to specifications.
Replace camshaft if damaged or if any part is worn past the
service limit.
Replace cylinder head if camshaft journal bore is damaged
or worn excessively.
Lubrication holes
Lobe height
Cam Lobe Height (Intake & Exhaust):
Std: 1.2955-1.2995I (32.881-32.981 mm)
Limit: 1.2837I (32.581 mm)
Journal O.D.
Journal
Camshaft Journal O.D.:
Mag & PTO End: 1.4935- 1.4941I
(37.935-37.950 mm)
Camshaft Journal I.D.:
Mag & PTO End: 1.4963- 1.4970I
(38.005-38.025 mm)
Camshaft Oil Clearance:
Std: .0022-.0035I (.055-.090 mm)
Limit: .0039I (.10 mm)
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