TM 10-4320-307-24
4-14
GEAR COVER ASSEMBLY REPAIR/REPLACE CONT).
a.
Put camshaft support (13), without shims or O-
ring seal, into place in bore of gear cover (4).
b.
Push camshaft support (13) against camshaft
and while hand pressure is applied, use feeler
gauge (16) to measure space between flange
of gear cover (4) and support bearing (13).
NOTE
The clearance between the bearing support and the camshaft gear must be 0.008 to
0.013 inch (0.20 mm to 0.33 mm).
c.
After measuring space between camshaft support (13) and flange of gear cover (4), add an additional 0.008
to 0.013 inch (0.20 to 0.33 mm) to that number to determine thickness of shims required. Example: space of
0.060 inch (1.52 mm), measured with feeler gauge, plus 0.010 inch (0.25 mm) for clearance would require
0.070 inch (1.77 mm) shims.
d.
Use micrometer to measure shims removed from camshaft support (13) at time of disassembly. Add or
remove shims, as required, to obtain correct clearance between camshaft support and camshaft gear (17).
NOTE
Shims are available in the following
thicknesses:
Shim Thicknesses
inch
mm
0.002
0.05
0.005
0.13
0.010
0.25
0.025
0.63
4-103
