Kohler K91 Service Manual page 101

screws could cause the magnet to come off d ur­
ing engine operation and be thrown from the en­
gine causing severe inj u ry . Replace the flywheel if
magnet is damaged .
REMOVE STATOR
1 . Remove the screws and stator.
REMOVE VALVES
1 . Rotate the crankshaft u ntil the piston is at top
dead center of compression stroke (both
valves closed and piston flush with top of
bore) .
2 . Compress the valve springs with a valve spring
compressor and remove the keepers . Refer to
Figure 1 0-4 .
F i g u re Removing Valves .
1 0-4 .
3 . Remove t h e valve spring compressor, then
remove the valves , intake valve spring lower
retainer, exhaust valve rotator , valve springs,
and valve spring u pper retainers .
NOTE : Some models use a valve rotator on both
valves .
REMOVE OIL PAN
NOTE : Make s u re the piston is at top dead center
in bore to prevent damage to oil dipper on con­
necting rod .
1 . Rem ove the hex cap sems screws , oil pan ,
and gasket .
1 0. 4
REMOVE CONNECTING ROD A N D PISTON
1 . Remove the connecting rod cap . Refer to
Fig u re 1 0-5 .
Hex Nuts
Valve Spring
Figure
Compressor
NOTE : I f a carbon ridge is present a t top o f bore ,
use a ridge reamer tool to remove it before at­
tempting to remove piston .
2 . Carefully push the connecting rod and piston
out top of bore.
REMOVE PISTON FROM CONN ECTING ROD
1 . Remove the retainer and wrist pin . Separate
the piston from the connecting rod . Refer to
Figu re 1 0-6.
Figure
REMOVE P I STON RINGS
1 . Remove the top and center compression rings
and the oil control ring spacer using a ring ex­
pander tool . Refer to Figure 1 0-7.
2 . Remove the rai ls and expander spring (s) .
Removing Con necting Rod And
1 0-5.
Pisto n .
Removing Pist o n From
1 0-6.
Connecting Rod.
Rod Cap