ENG
INSPECTION AND REPAIR
4-17
AUTOLUBE OIL PUMP
Internal wear or poor operation may cause the
pump to deviate from its factory adjustment.
However, this is very uncommon. If incorrect
operation is suspected, inspect the following:
1. Inspect:
• supply line Obstruction Apply air under
pressure.
Wear/Damage
Replace.
2. Inspect:
• drive gear teeth of the autolube oil pump
• gear teeth driven by autolube oil pump
Pitting/Wear/Damage
Replace
EAS00394
CHECKING THE CRANKSHAFT
1. Measure:
• crankshaft runout
C
Out of specification
Replace the cranks-
haft, bearing or both.
NOTE:
Turn the crankshaft slowly.
2. Measure:
• big end side clearance
D
Out of specification
Replace the big end
bearing, crankshaft pin, or connecting rod.
3. Measure:
• crankshaft width
A
Out of specification
Replace the cranks-
haft.
Maximum crankshaft runout
0.03 mm
Big end side clearance
0.2 ~ 0.5 mm
Crankshaft width
37.90 ~ 37.95 mm
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