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3.17
4. Using Valve Spring Compressor (PA--46502)(A),
compress the valve springs and remove the split
keepers. NOTE: To prevent loss of tension, do not
compress the valve springs more than necessary.
A
5. Remove spring retainer, inner and outer springs
and spring washer.
Spring washer
located below
A
NOTE: The valve springs should be positioned with
the tightly wound coils against the cylinder head (A).
6. Push valve out, keeping it in order for reassembly
in the same guide.
7. Measure free length of the inner and outer springs
with a Vernier caliper. Check springs for
squareness. Compare to specifications. Replace
inner and outer springs as a set if either
measurement is out of specification.
8. Remove the valve seals. NOTE: Replace seals
whenever the cylinder head is disassembled.
Hardened, cracked or worn valve seals will cause
excessive oil consumption and carbon buildup.
VALVE INSPECTION
1. Remove all carbon from valve with a soft wire
wheel.
2. Check valve face for runout, pitting, and burned
spots. To check for bent valve stems, mount the
valve in “V” blocks and use a dial indicator.
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