REAR CRANKSHAFT SEAL

ENGINE

Figure 50.

Figure 51.

10. Check the clearance with the above gears

This can be done by using a sleeve

assembled in place. Using a screwdriver, pry the teeth

or the regular pulley. Slip it over the

as far apart as possible and check the clearance with a

crankshaft and use the standard

feeler gauge.

assembly parts to tighten the pulley

If a .0015" feeler will not enter the gap, the clearance is

and gear in place.

not excessive.

13. After end play is adjusted, remove pulley.

11. To be certain that there is enough clearance,

Replace crankshaft seal in the gear cover. Cement

hold your finger at the junction of the two gears and,

gasket to cover with quick drying cement. Install cover

with a light hammer, tap the rim of the cam gear and

and pulley.

note if there is vibration felt at this point. (Fig. 51) If

there is vibration and a .0015" feeler gauge will not enter

REAR CRANKSHAFT SEAL

the gap between the two gear teeth, the gear fit is within

specifications.

A. GENERAL

12. Check crankshaft end play before replacing the

To replace this packing and reassemble this rear seal,

gear cover.

follow instructions carefully.

NOTE:

B. REMOVAL AND INSTALLATION

A shim pack containing shims of

.002" and .008" thickness is

1. Remove the filler block and oil guard, the latter

incorporated

the

assembly

being the semi-circular die casting which fits in the

between the front end of the main

cylinder block, in a groove machined just to the rear of

bearing journal and crankshaft gear.

the rear main bearing.

(Fig. 48) Removal or addition of

2. Clean all surfaces and grooves thoroughly. If a

shims will bring the end play to

scraper or wire brush is used, be

correct specifications.

The crankshaft gear must be

tightened firmly against the shim

pack when checking end play.

B-17