Kohler CH18-CH26 Service Manual page 189

Figure 9-49. Bolt Wiring Harness Detail.
Remove Spark Plugs
1. Remove the spark plug from each cylinder head.
Figure 9-50. Removing Spark Plugs.
Remove Cylinder Heads and Hydraulic
Lifters
NOTE: Cylinder heads are retained using either hex
flange screws or hex flange nuts and washers
on studs. Do not interchange or mix
components, as the cylinder heads may have
different machining, unique to each fastening
method.
1. Remove the four hex flange screws or hex nuts
and washers securing each cylinder head. See
Figure 9-51. Discard the screws or nuts and
washers once removed. Do not reuse. Studs (if
present) should only be removed if damaged or if
cylinder reconditioning is necessary. Once
removed, they must be replaced.
Hex Flange Screw
Hex Flange Nut
and Washer
Figure 9-51. Removing Cylinder Head Fasteners.
2. Mark the position of the push rods as either
intake or exhaust and cylinder 1 or 2. Push rods
should always be reinstalled in the same
positions.
3. Carefully remove the push rods, cylinder heads
and head gaskets. See Figure 9-52.
Section 9
Disassembly
9
9.13