Disassembling Engine; Removing, Disassembling And Assembling Combined Oil-Water Pump; Removing The Oil/Water Pump; Disassembling The Oil/Water Pump - BMW k 1200 rs Repair Manual

9
10

Disassembling engine

1100
Removing, disassembling and assem-
bling combined oil-water pump

Removing the oil/water pump

•
Disconnect oil pressure warning and water pump
temperature sensor cables from switch.
•
Withdraw cables through hole in pump housing.
•
Remove pump housing cover (10) and loosen
the gasket by tapping lightly a plastic-faced ham-
mer.
•
Remove the housing and loosen the gasket by
tapping lightly with plastic-headed hammer.
•
Pull off the oil pump gearwheel and the oil pump
intermediate flange.

Disassembling the oil/water pump

•
Clamp the pump housing into a vise at the seal-
ing faces, using soft jaws.
•
Remove water pump impeller (9), holding pump
shaft (5) to prevent it from turning.
1
2
3
4
8
7
6
•
•
•

Removing slipring seal and shaft sealing ring

•

Removing the oil pressure relief valve

•
•

Installing the oil pressure relief valve

•
•
X
Oil pressure relief valve screw plug .............. 35 Nm
5
Take off the water pump impeller with spacing
bushing (8).
Press out pump shaft (5).
Examine the pump housing for damage.
Drive out slipring seal (7) and shaft sealing
ring (6) with a drift, BMW No. 11 6 721.
Unscrew plug (1) and take out spring (3).
Pull valve piston (4) out with a magnet and exam-
ine it for damage.
Oil valve piston (4) lightly before installing.
Insert spring (3) and tighten the screw plug with
a new seal (2).
Tightening torque:
KR110420
11.13