SAAB WIS ONLINE

INSPECTION

INSPECTION

TIP CLEARANCE

Measure the tip clearance of rotors. If clearance exceeds the limit, replace the rotors as a matched set.

Tip clearance:

Standard

0.04 — 0.14 mm (0.0016 — 0.0055 in)


CASE CLEARANCE

Measure the clearance between outer rotor and oil pump rotor housing. If clearance exceeds the limit, replace the rotor.

Case clearance:

Standard

0.10 — 0.175 mm (0.0039 — 0.0069 in)


SIDE CLEARANCE

Measure the clearance between the oil pump inner rotor and pump cover. If clearance exceeds the limit, replace the rotor or pump body.

Side clearance:

Standard

0.02 — 0.07 mm (0.0008 — 0.0028 in)


OIL RELIEF VALVE

Check the valve for fitting condition and damage, and the relief valve spring for damage and deterioration. Replace the parts if defective.

Relief valve spring:

Free length

73.7 mm (2.902 in)

Installed length

54.7 mm (2.154 in)

Load when installed

93.1 N (9.49 kgf, 20.88 lb)

OIL PUMP CASE

Check the oil pump case for worn shaft hole, clogged oil passage, worn rotor chamber, cracks, and other faults.

OIL SEAL

Check the oil seal lips for deformation, hardening, wear, etc. and replace if defective.