Kohler K91 Service Manual page 126

Fig u re 1 2-28. Aligning Camshaft Gea r And
Crankshaft Gear.
4 . Install the 3 / 8 " s pacer and one ( 1 ) . 0 1 0 " shim
spacer to the stu b shaft for the lower balance
gear.
5. Position the crankshaft so it is about 1 5 ° past
bottom dead center ( BOC) . Align the secon­
dary timing mark on lower balance gear with
the secondary timing mark on crankshaft . Re­
fer to Figure 1 2-29 .
Figure 1 2- 2 9 . 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 pri mary timing mark on crank­
shaft . Refer to Figure 1 2-30.
6 . Secure the lower balance gear t o stub shaft
using one ( 1 ) . 020 " shim spacer and retaining
ring ( rou nded edge towards gear) . Check end
play of lower balance gear as instructed in
" I N STALL BALANCE GEARS" .
Figure 1 2-30. Crankshaft Gear/Lower Balance
Gear Alignment.
7 . Check the timing of the crankshaft , camshaft ,
and balance gears :
•
The pri mary timing mark on crankshaft
should align with the secondary timing mark
on lower balance gear. Refer to Figu re
1 2-23 .
•
The primary timing mark on crankshaft
should align with the timing mark on cam­
shaft . Refer to Figure 1 2-24 .
•
The primary timing mark on crankshaft
should align with the p ri mary timing mark on
upper balance gear. Refer to Fig ure 1 2-3 1 .
Figure 1 2-3 1 . Crankshaft Gear/Upper Balance
Gear Alignment.
If the marks do not align , the timing i s i ncor­
rect and must be corrected .
I N STALL FRONT BEARI NG
1 . Install the front bearing i nto the bearing plate
using the #4747 handle and appropriate bear­
ing installer. (Refer to the
tion) . Make sure the bearing is bottomed fully,
and straight and true i n the bore .
Special Tools " sec­
II
1 2 . 9