housing hole cover over the camshaft and the front
balance weight cover.
Do not remove the puller or the
adaptor plate until the camshaft is
3. Remove the cylinder head.
The adaptor plate,
secured to both the flywheel housing
4. Remove the front balance weight cover and place a
and the camshaft gear, will hold the
wood block between the balance weights (Fig. 4).
gear securely in place and in
alignment which will aid in the
5. Remove the gear nut retainer after removing the
reinstallation of the camshaft.
bolts. Remove the tachometer drive adaptor, if used.
13. Remove the front bearing from the camshaft and
6. Loosen and remove the nut at each end of the
pull out the inner thrust washer. Then pull the camshaft
and intermediate bearings from the cylinder block.
7. Remove the front balance weights.
Disassemble Camshaft and Balance Shaft
8. Remove the thrust washer between the bearing and
the balance weight hub.
1. Remove the gear from the shaft (refer to Page 10-2-
9. Remove the lock screws that secure the camshaft
2. Slide the rear bearing off of the shaft.
10. Remove the three bolts that secure the camshaft
Remove the lock rings from the camshaft
bearing to the front end plate.
intermediate bearings and free the two halves of each
11. Install the camshaft gear puller J 1902-01, four
spacers J 6202-2 and camshaft gear puller adaptor plate
4. To facilitate the removal of any foreign material
J 6202-1 on the camshaft gear (Figs. 6 and 7).
lodged behind the plugs, remove the end plugs from
each camshaft as follows:
12. Turn the center screw of the puller clockwise to
disengage the camshaft from the camshaft gear.
a. Clamp the camshaft in a vise equipped with soft
jaws, being careful not to damage the cam lobes
or machined surfaces of the shaft.
b. Make an indentation in the center of the
camshaft end plug with a 31/64 " drill (carboloy
c. Punch a hole as deeply as possible with a
center punch, to aid in breaking through the
hardened surface of the plug.
d. Then, drill a hole straight through the center of
the plug with a 1/4 " drill (carboloy tip).
e. Use the 1/4 " drilled hole as a guide and re-drill
the plug with a 5/16 " drill (carboloy tip).
f. Tap the drilled hole with a 3/8 "-16 tap.
g. Thread the 3/8 "-16 adaptor J 6471-2 into the
plug. Then attach the slide hammer J 2619-5 to
the adaptor. Remove the plug by striking the
weight against the handle.
h. Insert a .375" diameter steel rod into the
camshaft oil gallery and drive the remaining
Fig. 7. Removing Gear (Camshaft or Balance Shaft
Gear Puller J 1902-01)
If a steel rod is not available, remove