112
CHAPTER
SIX
results with specifications in
Tables
1-3. Worn guides
must be replaced.
6. Test
the
valve springs under load on a spring tester
(Figure
22). Replace any spring that does not meet the
specification listed in
Tables
1
-
3.
7.
Inspect the valve seats. If worn or burned, they must be
reconditioned.This is a job for a dealer or machine shop,
although the procedure is described in this chapter.
8.
Check each spring on a flat surface with a steel square.
See
Figure
23. Slowly revolve the spring 360" and note
the space between the top of the coil and the square. If it
exceeds
1.4
mm (0.055 in.) at any point, replace the
spring.
9.
Check the valve guides for wear and looseness. Refer
to
Tables
1
-
3 for valve guide specifications.
A
loose valve
guide must be replaced.
Valve Guide Replacement
The cylinder head is equipped with replaceable valve
guides. The intake and exhaust valve guides are different
in shape. Refer to
Figure
24. The intake valve guide has a
straight inside bore, while the exhaust valve guide has a
stepped opening at the lower end of the guide.
Take the cylinder head to a dealership or machine shop
if valve guide replacement is required.
1
Exhaust valve guide Intake valve guide
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