1956 AMC Hudson Technical Service Manual Supplement

14 TECHNICAL SERVICE MANUAL
Figure 23 illustrates a vibration damper puller which
may be fabricated locally.
FIGURE 23—Suggested Damper Puller
In the event of engine noises, it is time-saving to inspect
the vibration damper assembly before engine tear-down.
Incorrect assembly of the cushions and rubbers will permit
a noise similar to bearing noises.
Engine support cushions also are a source of misdiagnosed
engine bearing rap.
FLYWHEEL AND STARTER
RING GEAR ASSEMBLY
The flywheel plate is balanced as a component of the fluid
coupling on Hydra-Matic transmission equipped cars. The
flywheel ring gear is part of the torus cover assembly.
On standard and overdrive transmission equipped cars,
the flywheel is balanced as an individual component and
also as part of the crankshaft assembly.
Service replacement flywheels may be installed without
attempt to duplicate balance holes present in original assembly.
LUBRICATION SYSTEM
The lubrication system is the full pressure type.
Pressure is supplied by a gear type, positive pressure
pump mounted on the rear main bearing cap.
1. Pulley 4. Hub
2. Rubber Cushion 5. Friction Disc
3. Rubber Friction Washer
Oil Pump
FIGURE 24—Vibration Damper Pulley
The oil pump is driven by the distributor drive shaft.
Oil pump removal or replacement will not affect distributor
timing as the distributor drive gear remains in mesh with
the camshaft gear.
Upon disassembly of the oil pump, locate a straight edge
across the pump body and gears in their operational cavity
and check the gear to cover clearance which should not
exceed .004".
A clearance of .008" maximum should exist between the
gears and the walls of the gear cavity opposite point of gear
mesh.
NOTE: The pump cover should be installed with
pump out of engine and pump checked for freedom of
operation before installation.