1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

TRANSMISSION 8 - 9
open, clean and the top sufficiently loose so that it may be
rotated. The breather must be Installed so that the holes in
the side of the body are fore and aft, and extend entirely
through the top wall of the case, as shown in the illustration
below, Figure 20.
Transmission mainshaft bearings are built originally
with end play and because they may feel quite loose, it
does not necessarily indicate that they are worn and
unfit for use.
COUNTERSHAFT GEAR CLUSTER ASSEMBLY:
Inspect all gears on cluster for damaged teeth.
Remove any and all raised edges from teeth surfaces by
hand stoning. Recommended diametrical clearance
between countershaft and bore of cluster bushing is
.001" to .0025". Replace bushings if clearance is greater
than .005". Bushings can be removed with any suitable
arbor press and driver.
Should a new cluster gear be Installed, be sure that
large gear (at driven end) has 26 teeth which is of the
correct ratio and matches the 17 tooth Main Drive Gear.
COVER BAFFLE:
FIGURE 20
The baffle plate welded to the transmission cover should
be so arranged as to almost touch the case boss when cover
screws are Installed. Bend baffle to obtain this position.
TRANSMISSION BALL BEARINGS:
DO NOT place bearings where dirt is liable to mix with
the lubricant in the bearing.
Bearings should be washed in clean gasoline or kerosene.
DO NOT SPIN the bearings and particularly do not spin
bearings with an air hose. Spinning a bearing at high speeds
will almost certainly do considerable damage. After washing
the bearings, blow them out with clean, dry air. Direct
the flow of air into the open face of the bearing while
holding the inner race and slowly rotate the outer race by
hand. DO NOT ALLOW the air to spin the bearing.
a. Inspect the bearings for cracks, chipped balls, race
and cone.
b. Lubricate the bearing with clean, new engine oil,
rotating the bearings by hand in order to spread the
lubricant over all surface.
To replace cluster bushings, place both bushings in
position in the gear cluster, being sure that the annular
groove in each bushing is nearest the adjacent end of
shaft. Install with Bushing Replacer J-1572, Figure 20,
and turn until both bushings are drawn into gear to
FIGURE 21
within .015" beyond each end of gear thrust face.
Insert loose pilot guide of Reamer KMO-338 in one end
of gear cluster and ream bushing to .865", Figure 22. Insert
removable pilot inbore of reamed bushings and ream remaining
bushing from opposite end of gear.