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Figure 12-28. Aligning Camshaft Gear And
Crankshaft Gear.
4.
Install the 3/8" spacer and one (1) .010" shim
spacer to the stub shaft for the lower balance
gear.
5.
Position the crankshaft so it is about 15° past
bottom dead center (BDC). Align the secon-
dary timing mark on lower balance gear with
the secondary timing mark on crankshaft. Re-
fer to Figure
12-29.
Figure 12-29. Aligning Lower Balance Gear
And Crankshaft.
Install the lower balance gear to the stub
shaft. If properly timed, the secondary timing
mark on lower balance gear will now be
aligned with the primary timing mark on crank-
shaft. Refer to Figure
12-30.
6.
Secure the lower balance gear to stub shaft
using one (1) .020" shim spacer and retaining
ring (rounded edge towards gear). Check end
play of lower balance gear as instructed in
"INSTALL BALANCE GEARS".
Figure 12-30. Crankshaft Gear/Lower Balance
Gear Alignment.
7.
Check the timing of the crankshaft, camshaft,
and balance gears:
•
The primary timing mark on crankshaft
should align with the secondary timing mark
on lower balance gear. Refer to Figure
12-23.
•
The primary timing mark on crankshaft
should align with the timing mark on cam-
shaft. Refer to Figure
12-24.
•
The primary timing mark on crankshaft
should align with the primary timing mark on
upper balance gear. Refer to Figure
12-31 .
Figure 12-31. Crankshaft Gear/Upper Balance
Gear Alignment.
If the marks do not align, the timing is incor-
rect and must be corrected.
INSTALL FRONT BEARING
1 . Install the front bearing into the bearing plate
using the #4747 handle and appropriate bear-
ing installer. (Refer to the "Special Tools" sec-
tion). Make sure the bearing is bottomed fully,
and straight and true in the bore.
12.9
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