10-16
Clearance between Crank Pin and
Connecting Rod Big End Bore
1. Measure the crank pin O.D. and the connecting
rod big end bore with a micrometer, and calcu-
late the difference (Figure 10-30).
2. If the clearance exceeds the allowable limits,
replace them.
Side Clearance of Connecting Rod on
Crank Pin
1. Assemble the connecting rod to the crank pin.
2. Measure the side clearance with a feeler gauge
(Figure 10-31).
3. If the clearance exceeds the allowable limits,
replace them.
Cam Heights for Intake and Exhaust
1. Measure the height of the cam at its highest
point with an outside micrometer (Figure
10-32).
2. If the measurement is less than the allowable
limit, replace the camshaft.
FIGURE 10-30. CRANK PIN AND CONNECTING
ROD CLEARANCE
FIGURE 10-31. SIDE CLEARANCE OF
CONNECTING ROD ON CRANK PIN
FIGURE 10-32. INTAKE AND EXHAUST CAM
HEIGHTS
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