Powerhead
Page 4A-30 90-8M0065421 NOVEMBER 2012
6. Measure the plastigauge at its maximum compressed width.
Connecting Rod
Oil clearance (standard) 0.015–0.041 mm (0.0006–0.0016 in.)
Oil clearance (service limit) 0.060 mm (0.0024 in.)
7. If the oil clearance is out of specification limit, measure the diameter of the connecting rod and the crankpin journal.
Replace as needed.
Inspecting the Camshaft and Valves
Camshaft
1. Measure the cam lobe at its maximum valve lift. Replace the cam if any of the cam lobe dimensions are out of
specification.
Cam Lobe
Intake and exhaust 23.78–24.04 mm (0.94–0.95 in.)
2. Measure the diameter of the upper and lower bearing journals. Replace the cam if the journal dimensions are out of
specification.
a - Upper bearing O.D.
b - Lower bearing O.D.
Cam Bearing Journal
Upper bearing O.D. 11.95–11.97 mm (0.4705–0.4713 in.)
Lower bearing O.D. 12.95–12.97 mm (0.5098–0.5106 in.)
Valves
1. Inspect the valves for damage/warpage. Replace if necessary.
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