21-1 Cylinder Head
Cylinder Head, Inspection
Cylinder head warping must not exceed the value
given in Group
21: Engine page 14. The check should
be done with a feeler gauge and a straight edge. Meas-
urement is done at six positions (A - F).
If warpage above the permissible level is found, the
cylinder head must be changed. If leakage is found, or
if the cylinder head has blow lines, no special meas-
urement is needed since such a cylinder head will have
to be attended to in any case.
Check the valve seats and check that the studs are
firmly seated.
Inspect the cylinder head for cracks. Carefully check
the areas around the valve seats and the holes for the
injector nozzles.
21-1 Cylinder Head
47701798 05-2013 © AB VOLVO PENTA 55
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