C-58
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
Whenever possible, the crankshaft should be removed
when new bearings are being installed in order to clean
the crankcase thoroughly. All bearing surface must be
free of grit and burrs.
B. FLYWHEEL
1. Removal
a) Removal of the flywheel required removal of the
Engine.
b) Remove the clutch assy.
c) Remove the six bolts (2-3).
d) Using a suitable sling to support it lever the
flywheel off the dowels.
2. Inspection and Repair
a) Inspect the flywheel ring gear for excessive wear,
chipped and broken teeth.
b) If inspection proves it necessary replace the
flywheel ring gear as follows :
1. Be sure the flywheel is exactly centered when
rotating it. The friction surface must be parallel
with the dial face, deviation of more than
0.05 mm (0.002 in) are not permissible.
2. If ring gear has worked loose on the flywheel,
do not attempt by welding remove the loose gear
and replace with a new one or replace flywheel
with ring gear.
1. Remove the ring gear by heating with a torch
or splitting with a chisel and driving off.
2. Heat a new ring gear to 400-550
0
F and install
it ensuring that it is hard against the
shoulder on the flywheel. The ring gear must
be installed with the lead on the teeth
towards the crankcase on diesel engines
(1-1). Permissible out of true of ring gear
= 0.3 mm (0.012 in).
c) Inspect the clutch friction surface for ridges,
scores, grooves, cracks and burn spots.
d) Using a straight edge and feeler gauges check the
friction face for hollows or high spots. The friction
face must be flat and true within 0.006 inch.
If necessary, the friction face should be ground
to this condition. If suitable grinding equipment
is not available the flywheel can be mounted in
a lathe and the friction face dressed with emery
cloth. If the surface is very rough take a fine cut
with a lather tool before dressing the friction face
with emery cloth.
Fig. 3
Crankcase, Crankshaft, Main Bearings & Flywheel
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