CYLINDER HEAD & VALVES
Inspect cylinder head COOLANT DIRECTORS
for RESTRICTIONS or LOOSENESS.
Visually check for RESTRICTIONS.
Tap or pull directors by hand to check for
directors. Use a slide hammer (1, Fig. 24)
with a small enough jaw to hook under
coolant director (2) "opening" as shown in
New coolant directors should be tapped into
place with a small hammer and block.
They must be recessed 1.5 mm (.06")
below the bottom deck of the cylinder head.
Aim coolant directors at angles shown in
Figure 24. - Coolant Director Removal
Figure 25. - Aiming Coolant Directors
Inspect Valve Guides as follows:
After cleaning ALL valve guide bores,
position a light at bottom of valve guide
bore; examine walls for burning, cracking or
Measure I.D. of valve guide at several
points. VALVE GUIDE I.D. LIMITS ARE:
9.500 mm (0.3740 in)
9.525 mm (0.3750 in)
Replace any guides which are:
Worn Beyond Limits
Remove valve guides with valve guide
remover (see Tool List for tool number).
PRINTED IN UNITED STATES OF AMERICA