Cylinder Head and Valves
02
020
39
RG,RG34710,91 –19–13AUG99–2/2
RG8326 –UN–06DEC97
Installing Valve Rotators
RG8327 –UN–06DEC97
Installing Valve Retainer Locks
RG8328 –UN–21MAY98
Seating Valve Retainer Locks
A—Valve Springs
B—Rotators
C—Retainer Locks
IMPORTANT: Replacement valve springs (R133891)
have higher working loads than older
springs (R116585). Newer valve springs
(R133891), have two green paint stripes
for identification. Valve springs must be
replaced in sets of two with new
rotators. DO NOT intermix springs
across valve bridges.
4. With cylinder resting on combustion face, install valve
springs (A) and rotators (B) with retainer locks (C).
5. Compress valve springs using JDG982 Valve Spring
Compressor and install retainer locks on valve stems.
6. Strike end of each valve several times with a soft,
(non-metallic) hammer to ensure retainer locks are
properly seated.
7. Recheck valve recess. (See CHECK VALVE HEIGHT
IN RELATION TO HEAD SURFACE, earlier in this
group.)
CTM100 (06APR04)
02-020-39
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=111
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