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Group 21 Engine Body
118
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Remove the flywheel
1. Attach a sling to the flywheel.
2. Unscrew the mounting bolts.
3. Screw the two jack-bolts into the holes in the fly-
wheel evenly, then remove the flywheel.
Weight: Approx. 138 kg [304 lb]
IMPORTANT! When you remove the flywheel,
do not drop it or bump it against a hard object.
IMPORTANT! The ring gear is bolt mounted to
the flywheel. Do not remove the gear except
when it has to be replaced.
Remove the idler shaft collar
1. Unscrew the cover mounting bolts, then remove
the cover.
2. Unscrew the idler shaft thrust collar mounting
nuts. Mark the collar position.
3. Screw bolts (M6 x 1.0 mm [0.24 x 0.039 in.])
through the thrust collar removing bolt holes and
pull the thrust collar from the gear case.
NOTE! Place marks to identify the right and left col-
lars to ensure proper backlash and end play in rein-
stallation.
Remove the timing gear case
1. Attach slings to the timing gear case.
2. Unscrew the timing gear case mounting bolts.
3. Remove the timing gear case by lifting it up until it
separates from the dowel pin. Do not damage the
oil seal.
Weight: Approx. 150 kg [330 lb]
Measure backlash and end play
Measure the backlash and end play of each gear to
obtain the data for parts replacement.
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