l-49
BASIC ENGINE
l-49
--
REMOVAL AND INSTALLATION (Continued)
CAMSHAFT BEARINGS
4. Position new bearings at bearing bores, and
Camshaft bearings are available pre-finished
to size for standard and undersize journal
diameters.
press in place with the tool shown in the il-
lustration. Be sure to center the pulling plate
and puller screw to avoid bearing damage.
Removal
1. With engine removed and placed in a work
stand, remove the camshaft, flywheel, and
crankshaft, following the appropriate pro-
cedures in this part. Push pistons to top of
cylinders.
Failure to use correct expanding collet
can cause severe bearing damage.
Align
oil holes in bearings with oil holes in cylinder
block before pressing them into block. Be
sure front bearing is installed specified dis-
tance below front face of cylinder block.
5. Install core plug.
2. Remove the camshaft rear bearing bore
plug. Remove camshaft bearings.
Installation
6. Install the camshaft, crankshaft, flywheel
and related parts, following appropriate pro-
cedures in this part, except do not check
I. Select the proper size expanding collet and
connecting rod and main bearing
back-up nut and assemble on expanding
clearances.
mandrel. With the expanding cotlet coi-
lapsed, install the collet in the camshaft
bearing and tighten back-up nut on expand-
ing mandrel until collet fits camshaft bearing.
2. Assemble the puller screw and extension (if
necessary) and install on expanding man-
drel. Wrap a cloth around threads of the
puller screw to protect the front bearing or
journal. Tighten pulling nut against the thrust
bearing and pulling plate to remove
camshaft bearing. Hold a wrench on the end
of puller screw to prevent it from turning.
3. Repeat the procedure for each bearing. To
remove the front bearing, install puller screw
from rear of cylinder block.
PULLING I
EXPANDblG COLLET
PULLER SCREW
\
PULLER SCREW EXTENSION
‘, ‘. ” : 1:;
__
:,
PULLING PLATE
:
To Next Page
Loading...
