Kohler K91 Service Manual page 125

If the marks do not a l ig n , the timing is incorrect
and must be corrected .
Figure 1 2- 2 4 . Cra nkshaft Gear/Ca mshaft
Gear Alignment.
2B) NEW STYLE
BALANCE GEAR ASSEMBLY­
WITHO UT A BALANCE GEAR TIMING TOOL
NOTE : The lower balance gear should be instal led
after <the crankshaft has been i nstalled .
1 . Count and mark the teeth on the crankshaft
gea r , and the land ( notches between teeth) on
the upper balance gear as follows :
Crankshaft Locate the primary timing mark
-
on crankshaft . While l ooking at the PTO end of
cran kshaft , start with the tooth d i rectly below
timing mark and count
counterclockwise
directio n . Mark the twelfth
toot h . Refer to Figure 1 2-25.
F i g u r e 1 2- 2 5 . Marking Tooth O n Cra n kshaft
Gear.
Upper Balance Gear
timing mark on balance gea r. Starting with the
land next to the timing mark , count
clockwise
lands i n a
enth land . Refer to Figure 1 2-26.
1 2 . 8
twelve ( 1 2)
teeth in a
- Locate the secondary
seve n
(7)
direction . Mark the sev­
Figure 1 2- 2 6 . Marking Land O n U pper
Balance Gear.
2 . Lubricate the rear bearing surface of crank­
s haft . Insert the PTO end of crankshaft through
the rear bearing . Align the twelfth ( 1 2th) tooth
marked on crankshaft gear with the seventh
(7th) land marked on u pper balance gear . Re­
fer to Figure 1 2-27 .
Figure 1 2-27. A l i g n i n g Crankshaft Gear And
U p p e r Balance Gear.
Press the crankshaft i nto the rear bearing u ntil
the crankshaft gear i s j ust above the camshaft
gear. but n ot in mesh with it .
3 . Align the timing mark o n camshaft with the
primary timing mark on crankshaft.
NOTE : To align the marks , rotate the camshaft
only do not rotate the crankshaft. Rotating the
crankshaft could cause the crankshaft gear to
come out of mesh (and out of time) with the wide
band of teeth on upper balance gear.
Press the cran kshaft all the way i nto the rear
bearing . Make sure the camshaft and crank­
shaft gears mesh and the marks align while
pressing . Refer to Figure 1 2-28.