POWERHEAD
Page 4-28 90-826883R2 JUNE 1998
Connecting Rod
1. Check connecting rods for alignment by placing rods on a surface plate. If light can
be seen under any portion of machined surfaces, if rod has a slight wobble on plate,
or if a 0.002in.(0.051 mm) feeler gauge can beinserted betweenany machinedsur-
face and surface plate, rod is bent and must be discarded.
57126
a
b
c
a - Feeler Gauge
b - Surface Plate
c - Even Downward Pressure
2. Overheating: Overheating is visible as a bluish bearingsurface color that is caused
by inadequate lubrication or excessive RPM.
3. Rust: Rust formation on bearing surfaces causes uneven pitting of surface(s).
51853
a
a - Pitting
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