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

TRANSMISSION 8 - 15
Worn, rough mainshaft rear bearing Sliding gear teeth
rough, chipped, tapered Excessive second speed mainshaft
end play Noisy speedometer gears
Noise may occur in neutral or in any one or more speeds.
Some gear noise is to be expected in all except high speed.
Trace the gears that are under load and examine them for
damage, checking the bearings and amount of end play.
Noise in neutral in the form of a constant regular click
indicates a nicked gear of faulty bearing.
End play on countershaft to be not less than .006" nor
more than .016". If a check shows end play of more than
.016" t indicates worn thrust washers that should be replaced.
End play on mainshaft intermediate gear and synchronizer
shift sleeve to be from .003" to .006" and if more
than .016" it indicates a worn synchronizer shift sleeve hub
lock ring that needs replacing. End play on the reverse idler
gear is from .003" to .010" and any end play in excess of
.010" requires replacement of gear.
OTHER NOISE CAUSES
Out-of-balance fan
Defective torsional damper
Out-of-balance flywheel
Unbalanced clutch assembly
Loose transmission mounting
Loose engine mountings
Worn universal joints
U-joints improperly Installed
Misaligned or sprung propellor shaft
Incorrect driveshaft assembly
STICKING IN GEAR
Improperly operating clutch
Insufficient chamfer on shift rail ball notches
Sliding gear tight on mainshaft splines
Misaligned mainshaft
Improper linkage adjustment
SLIPPING OUT OF FIRST GEAR
First and reverse sliding gear loose on main-shaft splines
Sliding gear teeth worn or tapered
Worn, misaligned mainshaft splines
Worn countershaft first speed gear
Excessive end play of reverse idler
Insufficient gear mesh
Too much chamfer on shift rail ball notch
Improper linkage adjustment
LOSS OF LUBRICANT
Lubricant level too high
Damaged or improperly Installed gaskets Damaged or defective
oil seals
Loose drain plug, transmission cover Cracked transmission
housing
Use of excessively foaming lubricant Stopped up transmission
breather
Worn mainshaft bearings
HARD SHIFTING
Improperly operating clutch Sliding gear tight on shaft
splines
Insufficient chamfer of sliding gear teeth Burred mainshaft
splines
Misaligned mainshaft
Damaged synchronizing unit Worn shifter rails
Worn or sprung shifter fork
Improper adjustment of shifting linkage
Difficult gear shifting, especially into second gear, is often
caused by the improper adjustment of the cross-shift control
wire or by looseness of the cable anchor clip which secures
it to the bell housing. This results in insufficient movement
being imparted to the transmission inner shift shaft lever to
allow it to fully engage the shift forks. In cases of hard
shifting the "Gear Shift" lever and cross shift control cable
should be adjusted if necessary as follows:
A. Place "Gear Shift" Control Lever, Figure 29 in the extreme
upper position.
B. Loosen control wire casing anchor bracket bolt. Pull
upper anchor bracket (18) up' until all slack is out of
casing and the shift shaft inner lever is fully over into the
low and reverse shifter. (Check this in transmission).
Tighten anchor bracket bolt (35) Figure 30. The control
wire anchor should have clearance at top and bottom.