Oil Pump Case: Overview Subaru Outback BH

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

Scheme 20

Scheme 21

Scheme 22

1. Disconnect battery ground cable. (Scheme 20): Disconnecting Battery Ground Cable
2. Lift-up the vehicle.
3. Remove under cover. (Scheme 21): Removing Under Cover
4. Drain coolant. See «DRAINING OF ENGINE COOLANT»(ref-178724-S41423551702005062100000), REPLACEMENT, Engine Coolant.
5. Lower the vehicle.
6. Remove radiator. See «REMOVAL»(ref-178724-S25268133642005062100000), REMOVAL, Radiator.
7. Remove V-belt. See «REMOVAL»(ref-159212-S08539056572005061700000), V-belt.
8. Remove front chain cover. See «REMOVAL»(ref-159212-S35166823892005061700000), Front Chain Cover.
9. Remove timing chain assembly. See «REMOVAL»(ref-159212-S21425971972005061700000), Timing Chain.
10. Remove oil pump relief valve. (Scheme 22): Removing Front Chain Cover

Scheme 23

Scheme 24

1. Install oil pump relief valve case and gasket
2. Tighten the bolts in the numerical sequence shown in the figure. Tightening torque: 6.4 N.m (0.65 kgf-m, 4.7 ft-lb) (Scheme 23): Tightening Bolts In Numerical Sequence (Scheme 24): Identifying Bolt Positions
3. Install timing chain assembly. See «INSTALLATION»(ref-159212-S34575938542005061700000), Timing Chain.
4. Install front chain cover. See «INSTALLATION»(ref-159212-S30706940152005061700000), Front Chain Cover.
5. Install V-belt. See «INSTALLATION»(ref-159212-S41962678682005061700000), V-belt.
6. Install radiator. See «INSTALLATION»(ref-178724-S26439489082005062100000), Radiator.
7. Fill coolant. See «FILLING OF ENGINE COOLANT»(ref-178724-S12492379372005062100000), REPLACEMENT, Engine Coolant.