RREMOVING AND INSTALLING OIL PUMP
Remove oil pan 11 13 000.
Remove sprocket (1).
Detach oil pump at crankcase.


11 13 000

Detach oil pump at holder.
Important: Spacers (2).
Installation: Loosen holder, position and
tighten without tension.

Installation: Adjust tightness off chain with
shims (1 and 2), that chain can be pressed in
under light thumb pressure.
Important: Watch position of shims (1) with
an oil bore.
Shim (2) must have same thickness as shim (1).

Vehicles after change point in 1982
REMOVING AND INSTALLING
OIL PUMP
Pull out oil dipstick.
Remove oil pan 11 13 000.
Unscrew nut (1) and take off sprocket.
Unscrew bolts (2).


11 13 000

Unscrew holder (3) and remove oil pump.
Installation:
Mount holder without tension.

Installation:
Push on sprocket after mounting oil pump.
Tightening torque* for nut.


* See Specifications

Installation / Chain Tightness:
Adjust chain tightness with shims (4 and 5) that chain will give at center under
light thumb pressure.
Shims (4 and 5) must have the same tickness.

Testing and Servicing:
Check whether oil pump runs easily by turning the drive shaft.

Disassemble oil pump and clean the oil filter screen (5).

Check oil pump for wear.
- Scoring in body
- Wear on rotors

The pressure relief valve is installed in the main bore and regulates the
engine oil pressure*, see 11 40 000.
Check whether piston (6) moves easily.
Check length of spring (7) = 68 mm (2.677").


* See Specifications
11 40 000

The 8 bar (112 psi) pressure relief valve regulates the oil pressure in front of the
oil filter and prevents oil filter leakage.
Check piston seat (8).
Check length of spring (9) = 44 ± 0,4 mm (1.732 ± 0.016").

Installation:
Press in spring (9) and washer (10) with a wrench socket and install circlip (11).