125
Inspection and Maintenance
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CONNECTING ROD
Connecting-rod foot inside diameter
Use the small-calibre gauge to measure the
connecting-rod foot inside diameter. If the
connecting-rod foot inside diameter is found to
exceed the service limit, replace the connecting
rod with a new one.
Tool Description:
Dial caliper
DETAILS
Connecting-rod foot inside diameter
Service limit: 20.040 mm
Connecting-rod deflection and
connecting-rod crank end side
clearance
The amount of wear at the connecting-rod crank
end may be estimated by checking the connecting-
rod foot play. This method is also useful in checking
the amount of wear shown by the component
parts of the connecting-rod crank end.
Tool Description:
magnetic support
Tool Description:
dial gauge (1/100 mm)
Tool Description:
Set of tapered blocks (100 mm)
DETAILS
Connecting-rod deflection
Service limit: 3 mm
Push the connecting rod aside and measure the
side clearance with a feeler gauge. If the clearance
is found to exceed the service limit, replace the
whole crankshaft with a new one, or bring the
deflection and the side clearance found back into
the service limit by replacing their worn parts
(connecting rod, connecting-rod crank end bearing,
crankshaft pin, etc.).
Tool Description:
feeler gauge
DETAILS
Connecting-rod crank end side clearance
Service limit: 1 mm
