VALVE
ROCKER ARM COVER AND ROCKER ARM A
SHAFT
Removing And Disassembly
Of
The Rocker Arm
Shaft
Disconnect the spark plug wires and remove them from
the fastener
on
top of the rocker cover.
Remove the rocker cover fastening screws. Remove the
rocker cover and the gaskets.
Remove the rocker arm shaft attaching bolts evenly and
lift off the rocker arm shaft assembly [A).
Remove the cotter pin from one end of the shaft and
pull
the flat washer, the crimped washer and the second flat
washer from the shaft. The rocker arm shaft supports the
rocker arms and the springs can be removed from the
shaft.
Remove the plugs from the rocker shaft ends by
drilling
a hole
in
one plug. Install a long rod through the drilled
plug and hit the other plug out of the shaft. Remove the
drilled plug using the same method.
Clean the component parts of the shaft assembly
in
cleaning solvent.
Installing Rocker Arm Shaft
Put new plugs in the ends of the rocker shaft.
Assemble the rocker shaft. The bolt hole
in
the rocker
shaft support must
be
so the same side as the adjustment
screw
in
the rocker shaft. The rocker arms are right and
left hand, the rocker pads are angled towards the support.
Install the cotter pins with the heads up and bend the legs
apart.
Put oil
on
the valve stem tops, rocker arm pads and the
pushrod ends.
Install the rocker shaft assembly on the
cylinder head and put the pushrods on the adjustment
screws.
Install and tighten the bolts evenly. (See
SPECIFICATIONS Section
88
for Torque
Specifications. )
Make adjustment of the valve clearance to specifications.
Remove the old gasket material from the contacting
surfaces.
Put the rocker cover and gasket on the cylinder head and
fasten with the screws. Tighten the screws to the correct
torque specifications. (See
SPECIFICATIONS Section
88.)
Put
the spark plug wires
in
the rocker cover fasten
fastener and connect them to the correct spark plug.
Revised Oct. 97
-7B-22-
741,742,743,
7430S
Bobcat Loader
Service Manual
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