TM 9-4310-397-14
(b)
Radial clearance between gear and pump housing are as follows:
1.
Insert gauge (Figure 6-36, 1) between oil pump and gear.
2.
A measurement of 0.004 - 0.006 in. (0.10 - 0.16 mm) is the norm.
3.
The maximum permissible radial clearance is 0.008 in. (0.20 mm).
4.
Replace pump if clearance exceeds tolerances.
Figure 6-36. Oil Pump Radial Clearance
(c)
Housing bore ID and pump shaft OD are as follows:
1.
Measure the housing bore (Figure 6-37). The measurement taken should be 0.632 - 0.633 in. (16.05-
16.08 mm).
2.
The maximum permissible wear is 0.003 in. (0.08 mm).
3.
Measure drive shaft OD. The measurement taken should be 0.630 - 0.631 in. (16.05-16.08 mm).
4.
The maximum permissible wear is 0.001 in. (16.02 - 16.03 mm).
Figure 6-37. Oil Pump Housing Bore and Shaft OD
6-37
