Front Section
90
Use the following owchart and determine the shim pack thickness to adjust the transmission end play:
Measure the
clearance
Is the measured
value greater than the
maximum specied?
Is the measured value
greater than the minimum
specied?
No
Yes/No?
Yes
Calculate:
Measured value minus
Maximum specied = R1
Measured value minus
Minimum specied = R2
Yes/No?
No
The measured value is
not a valid value. Verify
if all existing shims were
removed, if the bearing cup
is installed properly and if
the shaft is seated properly.
Redo the measurement.
Use a shim pack thickness
greater than R1 and less
than R2.
Yes
Shims are not
necessary.
End
Example #1: countershaft end play adjustment
Specied end play: 0.06 mm to 0.11 mm
Measured end play: 0.47 mm
As the measured value is greater than 0,11 mm
(maximum specied), calculate:
0.47 - 0.11 = 0.36 mm (R1)
0.47 - 0.06 = 0.41 mm (R2)
The shim pack thickness must be within 0.36 mm and
0.41 mm.
Example #2: countershaft end play adjustment
Specied end play: 0.06 mm to 0.11 mm
Measured end play: 0.02 mm
In this case, it is not possible to calculate the shim
thickness, since the measured clearance is already
less than the minimum specied. This measured
value is not a valid value. So, it is necessary to redo
the measurement, verifying before if all existing shims
were actually removed, if the bearing cup is perfectly
seated on the bearing bore and free of any kind of
dirt, and if the shaft is seated properly on the bearing,
by rotating the shaft in both directions clockwise and
counterclockwise.