Pic. 3.112. Measuring the clearance between the driven gear and the stator shaft housing
Press the driven gear against the housing wall. Using a feeler gauge, measure the clearance between the driven gear and the stator shaft housing (pic. 3.112).
- Standard clearance: 0.10–0.17 mm.
- Maximum gap: 0.17mm.
If the clearance is greater than the maximum, replace the oil pump housing.
Pic. 3.113. Measuring the gap between the heads of the teeth in the driving and driven gears
Measure the clearance between the heads of the drive and driven gears (pic. 3.113).
- Standard gap between tooth heads: 0.07–0.15 mm.
- Maximum gap between tooth heads: 0.15 mm.
If the gap between the tooth heads is greater than the maximum, replace the oil pump housing.
Pic. 3.114. Measuring the backlash of both gears
Using a straightedge and feeler gauge, measure the backlash of both gears (pic. 3.114).
- Standard backlash: 0.02 - 0.05 mm.
- Maximum side clearance: 0.05 mm.