Lubricating system - Service procedures

7

Press in new bushings in the pump housing and bracket with tool 6849

8

Tighten the pump housing to the bracket again to enable guiding when reaming the bushings.

10

Release the screws and remove the pump housing from the bracket.

11

Clean the pump housing and bracket carefully from reaming shavings.

12

Fit the new pump gear in the pump housing and check the axial clearance of the gear with a feeler gauge. The correct clearance shall be 0.07–0.15 mm (0.0028–0.0059").

9

Ream the bushings in the pump housing and bracket with tool 6850

Checking of axial clearance

13

Check the gear flank clearance with a feeler gauge. The correct clearance shall be 0.15–0.30 mm (0.0059–0.0118")

Checking of gear flank clearance

Move over the pump gear to the bracket. Place the pump housing on the bracket and tighten. Check that the pump gear runs easily and does not snatch by turning the pump shaft a full turn.

17

Fit the intermediate gear. Tightening torque: see Workshop Manual, Technical Data for each engine concerned.

Oil pump, fitting

(All 10 ltr. engines and 12 ltr. engines with cast oil strainer)

1

Screw tight the main bearing cap on the oil pump’s bracket. Tightening torque: see Workshop Manual, Technical Data for each engine concerned.

15

When reconditioning a pump of previous version where the pump shaft and drive gear have grooves for keys, the drive gear shall also be replaced.

16

Heat the oil pump’s drive gear to 180° ±20°C (356° ±36°F), and then tap the gear on the shaft.

NOTE! The clearance between drive gear and pump bracket shall be 1.6 ±0.2 mm (0.063 ±0.008")

2

Clean the bearing shell and shaft journal. Oil in the bearing shell and screw tight the cap. Tightening torque: see Workshop Manual, Technical Data for each engine concerned.