SAAB WIS ONLINE

INSPECTION

INSPECTION

Check seal ring and O-ring oil seal for breaks or damage.

Check other parts for dents or abnormalities.

Selection of oil pump rotor assembly

Tip clearance

Install inner rotor and outer rotor to oil pump. With rotor gears facing each other, measure crest-to-crest clearance.

Tip clearance:

0.02 — 0.15 mm (0.0008 — 0.0059 in)


(A)

Thickness gauge

(B)

Inner rotor

(C)

Outer rotor



Side clearance

Set a depth gauge to oil pump housing, then measure oil pump housing-to-rotor clearances.

Side clearance:

0.02 — 0.04 mm (0.0008 — 0.0016 in)


(A)

Depth gauge

(B)

Inner rotor

(C)

Outer rotor



If depth and/or side clearances are outside specifications, replace rotor assembly.

Oil pump rotor assembly
Part No. Thickness mm (in)
32005739

11.37 — 11.38 (0.4476 — 0.4480)

32005740

11.38 — 11.39 (0.4480 — 0.4484)

32005741

11.39 — 11.40 (0.4484 — 0.4488)



Measure the total end play and adjust to within specifications.