Kohler K91 Service Manual page 119

Figure 1 2- 2 . Insta l l i n g Cross S haft And
Stop P i n .
Fig ure 1 2- 3 . Insta l l i n g Gove rnor Gear.
4 . Rotate gove rnor gear assembly to be sure
stop pin does not contact weight section of
governor gea r .
I N STALL TAPPETS A N D CAMS HAFT
1 . Instal l the intake valve tappet and exhaust
valve tappet into crankcase. (I ntake valve tap­
pet towards bearing plate side ; exhaust valve
tappet towards PTa side of crankcase . ) Refer
to Fig u re 1 2-4 .
Figure 1 2-4. Insta l l i ng Tappets.
1 2 . 2
NOTE : O n K 1 6 1 and K1 8 1 ACR engi nes , install the
shorter tappet in the exhaust bore guide . Intake
and exhaust tappets are interchangeable on other
models .
2 . I nstall the camshaft , one . 005 " shim spacer ,
and the camshaft pin (from bearing plate
side) . Do not drive the camshaft pin into its
final position at this time. Refer to Figure 1 2-5 .
Figure 1 2-5. Insta l l i n g Camshaft.
NOTE : On pre-ACR models with the automatic
spark advance camshaft , spread actuators and
insert cam . Align the timing marks on cam and
gear as shown in Figure 1 2-6.
Fig u re 1 2-6. T i m i n g Marks - P re-ACR Camshaft.
3 . Measure the camshaft end play between the
spacer and crankcase boss using a flat feeler
gauge . Refer to Figure 1 2-7 . Recommended
camshaft end play is
K9 1 and . 005" 1 . 0 1 0" -
models . Add or subtract . 005 " and/or . 0 1 0 "
. 005" / . 020" for model
for all other K-Series