Specifications

66
10. Remove the flywheel key and alternator if
equipped, and baffle plate.
11. Remove the muffler.
12. Remove the intake pipe, spacer if equipped, and
the carburetor. Be careful not to bend or
damage the linkage when removing. Mark the
hookup points or diagram the linkage
arrangement to aid in reassembly.
13. Remove the head by first removing the valve
cover. The push rod guide plate must be
removed to access one of the head bolts.
Remove the rocker arms by loosening the two
locking nuts or allen head screws ( use a 7/16"
wrench on OHH and OVRM, OHV 11-13 use a
1/2 wrench, OHV13.5 - 17 use a 3/16" allen
wrench ). Remove the rocker arm nuts or rocker
arm bearings followed by the rocker arms,
rocker arm studs, guide plate, and push rods.
Remove the head bolts, head, and head gasket.
NOTE: ON MOST OHV ENGINES THE
EXHAUST PUSH ROD CAN ONLY BE
REMOVED AFTER THE HEAD IS OFF. YOU
MUST HAVE IT BACK IN FOR RE-ASSEMBLY.
On engine models OHM, OHSK80 - 130, OVM,
OVXL and OHV, the valve springs, caps,
retainers, and retainer screw must be removed
to allow the rocker box to separate from the
head. Remove the jam nut, adjusting nut, rocker
arm bearings, rocker arms, push rods, guide
plate, and the rocker arm retainer screw.
Next to prevent valve or piston damage turn
the piston down in the cylinder. Then place a
3/4" (19.05 mm) deep socket over the valve cap
and strike the top with a steel hammer (diag.
15). This action loosens the cap. Remove the
cap, retainers, and valve springs. Remove the
rocker arm housing, head bolts, head, head
gasket and valves. Notice the "O"rings used to
seal the rocker box , valve stems, and push
rod tubes.
14. Remove the crankcase breather if necessary.
15
Main Menu