Kohler Command CV17-750 Service Manual page 168

Section 9
Disassembly
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 9-42. 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.
2. Mark the location of the push rods as either
intake or exhaust and cylinder 1 or 2. Push rods
should always be reinstalled in the same
positions.
Hex Flange Nuts
and Washers
Figure 9-42. Removing Cylinder Head Fasteners.
3. Carefully remove the push rods, cylinder heads,
and head gaskets. See Figure 9-43.
9.12
Figure 9-43. Removing Cylinder Head.
4. Remove the lifters from the lifter bores. Use a
hydraulic lifter tool. Do not use a magnet to
remove lifters. Mark the lifters by location, as
either intake or exhaust, and cylinder 1 or 2.
Hydraulic lifters should always be reinstalled in
the same position. See Figure 9-44.
Hex Flange
Screws
Figure 9-44. Removing Hydraulic Lifters.
Disassemble Cylinder Heads
1. Remove the two hex flange screws, rocker arm
pivots and rocker arms from the cylinder head.
See Figure 9-45.
Hydraulic Lifter Tool