REPAIR INSTRUCTIONS, PART 1
Page 169
Cylinder Head Cover and Spacer
Removal
[213 JB]
If the engine is equipped with a J-Tech™ engine
brake, a spacer is installed under the cylinder
head cover. Longer capscrews are used to
secure the cylinder head cover and spacer to the
cylinder head.
Engines equipped with the MACK PowerLeash™
engine brake do not have the spacer installed.
WITHOUT ENGINE BRAKE
1. Remove the cylinder head covers by
removing the six retaining capscrews and
isolators from each cover. Remove and
discard the cover seals.
WITH MACK POWERLEASH™ ENGINE
BRAKE
1. For the MACK PowerLeash™-equipped
engines, unplug the wire connector from the
outboard end of the cylinder head cover
pass-through connector.
162
Figure 162 — PowerLeash™ Control Wire Removal
2. Remove the cylinder head covers by
removing the six retaining capscrews from
each cover. Also recover the cylinder cover
isolators from each capscrew location.
3. For each cylinder head cover, carefully lift
and tilt the cylinder head cover onto the
cover’s side as shown in Figure 163, being
careful not to pull on the solenoid wire as the
cover is being lifted. Unplug the 90-degree
connector from the inside end of the cylinder
head cover pass-through connector. Then,
complete the removal of the cylinder head
cover.
If the solenoid wire is damaged from failure to
disconnect the wire as described above, the
solenoid assembly will need to be replaced.
163
Figure 163 — PowerLeash™ Internal Control Wire
Removal
5-111.bk Page 169 Monday, July 10, 2006 2:26 PM
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