Disassembly/Inspection and Service
7562 690 13 Rev. A KohlerEngines.com
Breather/Closure Plate/Oil Reservoir Components
A
O
N
B
C
P
Q
U
T
R
S
D
E
I
G
J
J
K
M
L
G
F
H
A Closure Plate B Gerotor Gears C Oil Pump O-ring D Oil Pump Housing
E Pickup Tube F Clamp G Inlet Seal H Pickup Screen
I Oil Reservoir J Drain Plug K Gasket L Closure Plate Gasket
M
Crankshaft
Non-Thrust Bearing
(PTO)
N Dipstick O Dipstick Tube P Breather Assembly
Q Breather Gasket R Filter S Breather Hose T Lifting Strap
U Oil Seal
Recondition valve seat inserts following instructions provided with valve seat cutter being used. Final cut should
be made with an 89° cutter as specifi ed for valve seat angle. Cutting proper 45° valve face angle as specifi ed, and
proper valve seat angle (44.5°, half of full 89° angle), will achieve desired 0.5° (1.0° full cut) interference angle where
maximum pressure occurs on outside diameters of valve face and seat.
Lapping Valves
Reground or new valves must be lapped in, to provide proper fi t. Use a hand valve grinder with a suction cup for fi nal
lapping. Lightly coat valve face with a fi ne grade of grinding compound, then rotate valve on its seat with grinder.
Continue grinding until a smooth surface is obtained on seat and on valve face. Thoroughly clean cylinder head in
soap and hot water to remove all traces of grinding compound. After drying cylinder head, apply a light coating of SAE
10 oil to prevent rusting.
Valve Stem Seals
These engines use valve stem seals on intake and exhaust valves. Always use new seals when valves are removed
from cylinder head. Seals should also be replaced if deteriorated or damaged in any way. Never reuse an old seal.
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