454 CID (7.4L) / 502 CID (8.2L) SERVICE MANUAL NUMBER 23
Page 3A-36
90-861326--1 MARCH 1999
Valve Stem Oil Seal / Valve Spring
Removal - Head Installed
1. Remove:
a. Rocker arm cover.
b. Spark plug of affected cylinder.
c. Rocker arm assembly.
2. Install air line adaptor tool (J-23590) in spark plug hole and apply compressed air to hold
valves in place.
3. Using valve spring compressor as shown, compress valve spring and remove valve
locks.
72516
a
b
a-Valve Spring Compressor (J-5892)
b-Rocker Arm Nut
4. Slowly release valve spring compressor. Remove cap, shield, and valve spring.
IMPORTANT: Maintain air pressure in cylinder while springs, caps, and valve locks
are removed or valves will fall into cylinder.
5. Remove oil shields from valve stems.
72149
a
a-Valve Stem Oil Shield
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