ENGINE
3.21
CYLINDER HEAD WARPAGE
1. Lay a straight edge across the surface of the cylinder
head at several different points and measure
warpage by inserting a feeler gauge between the
straight edge and the cylinder head surface. If
warpage exceeds the service limit, replace the
cylinder head.
CYLINDER HEAD DISASSEMBLY
W ARNING: Wear eye protection or a face shield during
cylinder head disassembly and reassembly.
NOTE: Keep all parts in order with respect to their location
in the cylinder head.
1. Using a valve spring compressor, compress the valve
spring and remove the split keeper. NOTE: To
prevent loss of tension, do not compress the valve
spring more than necessary.
2. Remove spring retainer and spring.
NOTE:The valve springs should be positioned with the
tightly wound coils against the cylinder head on progres-
sively wound springs (A).
3. Push valve out, keeping it in order for reassembly in
the same guide.
Cylinder Head Warpage Limit:
.002s (.05 mm)
A
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