PISTONS AND CONNECTING RODS
(Cont'd)
Installation
Install the bearing halves
in
the connecting rods and the
end caps. Turn the crankshaft as needed to fit each
connecting to the crankshaft, but do not
install the end
cap.
Measure the bearing clearances using Plastigage.
(See
Page
78-13
To
Check Crankshaft
Or
Connecting Rod
Bearing
.)
Clean all the bearing surfaces of the Plastigage material.
If needed use new rod bearings to correct clearances.
Install the connecting rods on the crankshaft and tighten
the connecting rod bolts to specifications.
Install a new gasket on the block flange using sealing
compound at each end.
Install the end seals with the
chamfered ends into the grooves again using sealing
compound.
Install the oil pan and tighten the bolts to the correct
torque,
following the tightening sequence. (See Page
78-31.)
Clean and install the starter. Fasten the starter with the
two bolts.
Clean
all the gasket material from the contact surfaces
and
install the cylinder gasket on the cylinder block using
alignment studs.
Install the cylinder head. Remove the alignment studs
and
install the cylinder head bolts. Tighten the bolts. (See
Page
78-22
Installing The Cylinder Head.)
Put oil
on
both ends of the push rods and install the
pushrods
in
the correct bores.
Install the rocker shaft assembly on the cylinder head put
the pushrods on the adjustment screws. Tighten the bolts
to the correct specifications.
CAMSHAFT BEARINGS
The service bearings for the camshaft are machines to fit
and need no machining after
installation. When one
bearing needs replacement replace
all three bearings to
be
sure of the correct camshaft alignment.
Make sure that the oil holes in the bearings and the
cylinder block are
in
correct alignment before installation
and that the bearing openings are at
45° to the vertical
[A].
Revised Oct. 97
-78-35-
741,742,743,
743DS
Bobcat
Loader
Service Manual
To Next Page
Loading...