Kohler K91 Service Manual page 122

OLD STYLE BALANCE GEAR ASSEM BLY -
1 A)
WITH A BALANCE GEAR T I M I NG TOOL
1 . Align t h e primary timing marks of balance
g ears with the teeth on timing tool. Insert tool
so it meshes with gears. Hold or clamp tool
against o i l pan gasket s u rfac e . Refer to Figure
1 2- 1 3 .
Figure 1 2- 1 3 . Installing Balance Gear
Tim ingTool.
2 . Lu bricate t h e crankshaft rear bearing surface.
I nsert the PTO end of crankshaft through rear
bearing . " Straddle " the primary and secondary
timing marks on crankshaft over the rear bear­
ing oil drain (refer to Figure 1 2- 1 4) . Press the
crankshaft into rear bearing until the crankgear
is just above the camshaft gear but not i n
m e s h with it .
Figure 1 2- 1 4 . Aligning Crankshaft And
Balance Gears.
NOTE : If the crankshaft and bearing plate have not
been separated . position t h e fuel line and wiring
harness between the bearing p l ate and crankcase
before pressing the crankshaft all the way i n .
3 . Remove the balance gear timing tool and
align the primary timing mark on the crank­
shaft with the timing mark o n the camshaft
gear. Refer to Figure 1 2- 1 5 . Press the crank­
shaft all the way into the rear beari n g . Make
sure the camshaft and crankshaft gears mesh
and that the timing marks align while press­
ing .
F igure 1 2- 1 5. Aligning Crankshaft And
Camshaft Timing Marks.
4 . Check t h e timing o f the crankshaft, camshaft ,
and balance gears :
•
The primary timing mark on crankshaft
should a l i g n with the secondary timing mark
on lower balance gear. Refer to Figure
1 2-1 6 .
Balance Gear
Secondary Timing M a rk
Figure 1 2-1 6. Checking Crankshaft And
Balance Gear Alignment.
• The primary timing mark on crankshaft
should align with the timing mark on cam­
shaft . Refer to Figure 1 2- 1 5 .
If the marks do not a l ig n . the timing is i ncorrect
and m ust be corrected .
OLD STYLE BALANCE GEAR ASSEMBLY -
1 B)
WITHOUT A BALANCE GEAR T I M I NG TOOL
1 2 . 5