Hudson 1948 - 1952, Service Manual

Page: 230 / 333

9 - 22 OVERDRIVE
29. Remove retainer and select and Install a gasket .003" to
.005" thicker than clearance indicated by feeler. (Gaskets are
available in four different thicknesses.)
30. Place bearing retainer in position, Install 3 cap screws and
tighten, making sure oil drain hole in flange is aligned with
hole in case.
31. Install the transmission cover and gasket. The cover gasket
has three vent holes and must be Installed with holes to rear
of case. The cover has one vent hole and is Installed with
hole to front of transmission. See marking on cover.
32. Complete balance of assembly as outlined under
"Installation of Adaptor Plate, Solenoid Pawl, Sun Gear
Control Plate and Blocker Solenoid, Sun Gear, Shift Rail
and Fork, Clutch Cam, Pinion Cage and Overdrive Main-
shaft", Pages 13 and 14, also " Overdrive Housing Installa-
tion" , Page 15.
TRANSMISSION AND OVERDRIVE
Installation
1. Install two headless screws or studs in engine end plate to
assist in supporting the overdrive and transmission at Instal-
lation.
NOTE: Before Installing the overdrive and transmission to
engine rear support plate, check cylinder block rear support
plate very carefully for tightness and alignment. This is espe-
cially important in cases where the car has been subject to
chronic transmission trouble, noisy and jumping out of gear.
Make a similar check of transmission clutch bell housing.
In lieu of highly precise equipment, use a steel straightedge to
check steel rear support plate and a surface plate or other flat
surface to check the front face of clutch bell housing. Both units
should be flat and in plane within .005".
Be sure to check position of clutch driving plate and see that it
is perfectly centralized within the clutch assembly. This can be
done by using the J-449 aligning arbor or with a standard main
drive gear if arbor is not available. If this precaution is not taken,
difficulty will be encountered when Installing the transmission
and the front end of the drive gear shaft and pilot bearing in the
flywheel will be damaged.
2. Rotate clutch collar and throwout bearing to position
for proper alignment with throwout yoke on transmis-
sion.
3. Tighten all rear engine support plate to block screws.
4. Bring the overdrive and transmission assembly to
position where the main drive gear (clutch shaft) is
aligned with bore of clutch throwout collar, then care-
fully push transmission forward to enter drive gear
splined shaft through grease retainer leather washer,
splines of clutch driving plate and into pilot bearing in
flywheel.
NOTE: During this operation the main drive gear must
be relieved of all over hanging weight of the transmis-
sion until the bell housing engages the dowels on en-
gine rear support plate. Before transmission assembly
is moved up against rear support plate make a last
inspection to verify that end face of throwout collar in
clutch is properly aligned with throwout yoke on trans-
mission and that oil seal lip has not turned under.
CAUTION: Alignment of bell housing with engine is
controlled by the sleeve dowel in the upper left location
of tile bell housing attaching bolt circle and by the
dowel bolt at the lower right location viewed from rear
of car. Make sure that the former is in place and
entered in bell housing hole before tightening bolts.
Install lower right bolt (dowel bolt) first. NEVER
grind or otherwise reduce the diameter of the dowel
bolt to facilitate Installation.
5. Remove the two headless screws or guide studs, J-2969.
6. Install remaining clutch bell housing bolts and screws
and tighten with a torque wrench to 40-45 foot pounds.
7. Complete remainder of Installation by reversing the
order of removal of the remaining parts. Check adjust-
ments and refill transmission and overdrive. A total of
3-1/4 pounds of lubricant is required for the single
lever type transmission and 3 pounds for the double
lever type transmission.