Turn crankshaft to TDC position.
Install locking device, BMW No. 11 5 640, to lock clutch housing.
Remove conrods.
Note: Conrods can also be removed and installed with the crankshaft removed.
Caution!
- Do not mix up conrods or bearing shells.
- Use a felt-tipped pen or similar to mark the installed positions on the conrods.
Install conrods.
Caution! Oil the bearings.
Screw in the big-end bolts by hand and tighten with commercially available angle-of-rotation indicator or tightening angle indicator, BMW No. 11 2 500.
Note: When using tightening angle indicator, BMW No. 11 2 500, make sure the extensions are of the same length. Use a 3/8« square-drive socket wrench.
Caution: Never re-use the big end bolts.
Tightening torque: Big end bolts oiled:
- Closing torque — 20 Nm
- Tightening angle — 80°