NOTE
:
Piston and cylinder ought to be replaced if the max. play between
piston skirt and cylinder wall exceeds
0.35
mm.
Depending on engine
typ, the piston ring end play should not exceed 0.10 to
0.12
mm.
COMMENTS
:
1.
Piston rings:
All three piston rings have to be replaced if piston ring end
gap exceeds the max. dimension stated in table item
"F".
Ring
end gap has to be measured in the bore of a new cylinder.
2.
Connection rod/wrist pin:
The stressed surfaces of wrist pin and connecting rod turn in a
needle bearing,
so
that the play between these surfaces cannot
easily be measured. If the wrist pin has seized or has changed
colour excessively but rod surface seems to be still undamaged,
replace the wrist pin and needle bearing.
If the bearing surface of rod eye (wrist pin rolling surface)
has seized or has excessively changed colour, the complete
crankshaft ought to be replaced.
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