5-9. VALVES MAINTENANCE INSTRUCTIONS - Continued
Repeat steps a. and b. with the intake valve.
With valves (2 and 9) installed in cylinder head,
Inspect valves (2 and 9) for scoring on the 45°
measure distance from bottom face of cylinder
head to bottom face of valves. If distance ex-
ceeds 0.0236 in. (0.600 mm), replace the valve.
Inspect stems of valves (2 and 9) and valve
guides (14) as follows:
Inspect valve springs (4 and 11) for cracks or bro-
Install exhaust valve (2) in cylinder head with
stem extending fully through the valve guide
Inspect exhaust roto cap (5), by spinning the cap.
Binding movement or presence of a rattling
Using a dial indicator set at measuring point
sound indicate a defective roto cap.
on valve stem as indicated, shift the valve
stem laterally and note the amount of move-
ment. If movement exceeds 0 0059 in (0.15
mm). both the valve and the valve guide must