W46, W55, and W56 Transmissions

CHECK OIL CLEARANCE OF FIRST GEAR
Using a dial indicator, measure the oil clearance between the gear and inner race with the needle roller bearing in- stalled.
Standard clearance:
0.009 - 0.060 mm (0.0004 - 0.0024 in.)
Maximum clearance:
0.15 mm (0.0059 in.)
If the clearance exceeds the limit, replace the gear, inner race or needle roller bearing.





CHECK OIL CLEARANCE OF SECOND AND COUNTER FIFTH GEAR
Using a dial indicator, measure the oil clearance between the gear and shaft with the needle roller bearing installed. stalled.
Standard clearance:
2nd gear
0.009 - 0.060 mm (0.0004 - 0.0024 in.)
5th gear
0.009 - 0.062 mm (0.0004 - 0.0024 in.)
Maximum clearance:
0.15 mm (0.0059 in.)
If the clearance exceeds the limit, replace the gear, shaft or needle roller bearing.





CHECK OIL CLEARANCE OF THIRD GEAR
Using a dial indicator, measure the oil clearance between the gear and output shaft.
Standard clearance:
0.060 - 0.103 mm (0.0024 - 0.0041 in.)
Maximum clearance:
0.20 mm (0.0079 in.)
If the clearance exceeds the limit, replace the gear or output shaft.





INSPECT SYNCHRONIZER RINGS
(a) Turn the ring and push it in to check the braking action.





(b) Measure the clearance between the synchronizer ring back and the gear spline end.
Standard clearance:
0.7 - 1.7 mm (0.028 - 0.067 in.)
Minimum clearance:
0.5 mm (0.020 in.)
If the clearance is less than the limit, replace the synchronizer ring.