Oil Pump: Service and Repair

NOTE: Since a connecting link might wipe against timing chain or oil pan, do not open double roller chain during repairs and connect again by means of a connecting link.

To renew double roller chain and tensioning unit, completely remove oil pan and front cylinder housing cover.





45 Clamp
47 Torsion spring





43 Flange member
56 Fastening screw

Removal
1 Completely remove oil pan. Service and Repair
2 Unscrew fastening screw (56) of sprocket.
3 Remove torsion spring (47) from clamp (45) in rearward direction.
4 Turn clamp in upward direction.
5 Remove sprocket by means of two screwdrivers.
6 Unscrew hex. screws (arrows) on oil pump and remove oil pump.
7 Remove sprocket.
8 Pull flange member (43) out of cylinder crankcase.







42 O-ring

Installation
9 Renew O-ring (42) on flange member, if damaged.
10 Insert flange member.
11 Place sprocket into double roller chain.
12 Install oil pump and tighten fastening screws to 20 - 25 Nm on crankcase or 9 - 11 Nm on flange member.
13 Place sprocket on drive shaft and tighten fastening screw (56) to 30 - 35 Nm.
14 Set clamp on double roller chain and place torsion spring on clamp.
15 Completely install oil pan.