Kohler K9J Service Manual page 130

INSTALL VALVES
1 .
Rotate the crankshaft until piston is at top
dead center of compression stroke.
2. Install the valves and measure the valve-to-
tappet clearance using a flat feeler gauge. Re-
fer to Figure 12-38.
Figure 12-38. Measuring Valve-To-Tappet
Clearance.
NOTE: Valve faces and seats must be lapped-in
before checking/adjusting valve clearance. Refer
to the "Inspection And Repair/Reconditioning" sec-
tion.
Valve-to-tappet clearance:
Model Intake Valve Exhaust
Valve K91 . 005" I. 009" .011"/.015"
K161, K181 .006"
I
.008" .017"/.019"
K241, K301,
.008" /.010" .017"/.019"
K321, K341
3.
Adjust valve-to-tappet clearance, as neces-
sary.
On Models K91, K141, K161, and K181;
If clearance is too small, grind end of valve
stems until correct clearance is obtained.
Make sure stems are ground perfectly flat and
smooth.
If clearance is too large, replace the valves
and recheck clearance.
NOTE: Large clearances can also be reduced by
grinding the valves and/or valve seats. Refer to
the "Inspection And Repair/Reconditioning" section
for valve specifications.
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Figure 12-39. Adjusting Valve-To-Tappet
Clearance.
On Models K241, K301, K321, and K341, ad-
just valve-to-tappet clearance by turning the
adjusting screw on tappets. Refer to Figure
12-39.
4. On Models K91, K161 and K181, install the
valve springs (close coils to top), intake valve
spring retainer, exhaust valve rotator or retain-
er, and valves. Refer to Figure 12-40.
12.13