Suzuki SY413 Service Manual page 1925

7A2-34 MANUAL TRANSMISSION
Inspection of gear tooth surface contact
Upon completion of assembly, apply red lead paste to tooth surface of drive bevel gear and turn it by hand to check
its contact with drive bevel pinion. Adjust if check result is not satisfactory.
NOTE:
Apply red lead paste all around bevel gear but not so much as to become sticky.
Tooth surface contact Possible cause and correction
Both forward and reverse con-
tacts should occur a little toward
inside from the center.
Forward contact occurs toward
outside and reverse contact to-
ward inside from the center and
both at higher position. In such
case, bevel pinion shim is too
thin.
Correction:
Adjust shim thickness by in-
creasing it.
Forward contact occurs toward
inside and reverse contact to-
ward outside from the center and
both at lower position. In such
case, bevel pinion shim is too
thick.
Correction:
Adjust shim thickness by reduc-
ing it.
When tooth contacts occur as
shown at the left, proper rear
case offset (1 8 mm) in not ob-
tained.
Correction:
Replace rear case (rear case,
right case and left case assem-
bly).
When tooth contacts are de-
viated toward inside or outside of
gear, possible causes are as fol-
lows.
D
Drive bevel gear or drive bevel
pinion defective.
D
Poor squareness of rear case.
D
Rear case surface where gear
is installed is defective.
Correction:
Replace defective part as an as-
sembly.
Tooth surface contact Possible cause and correction
When tooth contacts occur as
shown at the left, gear itself is
defective.
Correction:
Replace drive bevel gear and
drive bevel pinion as a set.
When contact is not oval in
shape, gear itself is defective.
Abnormal contact is also caused
by nick in tooth surface or faulty
condition of differential case at
its drive bevel gear mounting
part.
Correction:
Replace drive bevel gear and
drive bevel pinion as a set and
differential gear case as well, if
found defective.