Crankshaft Installation
WARNING: This page is about a different variant/trim than selected.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Cross cap bolt (8 off - not equipped to rear main bearing cap) |
| 2 | Under-head sealing washers (8 off) |
| 3 | Front main bearing cap |
| 4 | Ring dowel (10 off) |
| 5 | Outer main bearing cap bolt (10 off) |
| 6 | Inner main bearing cap bolt (10 off) |
| 7 | Rear main bearing cap |
| 8 | Main bearing caps (3 off) |
The main bearing caps are made from cast iron and are cross bolted to increase rigidity. An identification mark on each bearing cap must face the front of the engine.
There are six grades of main bearing available, each being color coded. Journal sizes are marked on the rear of the crankshaft.
The thickness grade of all main bearing shells are to be selected to give a total running clearance of not less than 0.046 mm or not greater than 0.067 mm.
The main bearing shells in the cylinder block have a central hole and an internal groove to allow for main journal lubrication. The bearing shells in the main bearing caps are plain with no grooves.
Special tools are required to ensure the correct alignment of the upper and lower main bearing shells.