Crankshaft, Engine

1. Before installing the bolts the threads should be oiled with clean engine oil, wipe off any excess oil.
2. Install main bearing cap/bed plate to engine block bolts 11, 17, and 20 finger tight. Tighten these bolts down together until the bed plate contacts the cylinder block.
3. To ensure correct thrust bearing alignment, perform the following steps:
- Step 1: Rotate crankshaft until number 4 piston is at TDC.
- Step 2: Move crankshaft rearward to limits of travel.
- Step 3: Then, move crankshaft forward to limits of travel.
- Step 4: Wedge an appropriate tool between the rear of the cylinder block (NOT BED PLATE) and the rear crankshaft counterweight. This will hold the crankshaft in it's furthest forward position.
- Step 5: Install and tighten bolts (1-10) in sequence shown to 41 Nm (30 ft. lbs.).
- Step 6: Remove wedge tool used to hold crankshaft.
4. Tighten bolts (1-10) again to 41 Nm (30 ft. lbs.) in sequence shown.
5. Install main bearing bed plate to engine block bolts (11-20), and torque each bolt to 28 Nm (250 in. lbs.) in sequence shown.
6. Tighten bolts (1-10) to 75 Nm (55 ft. lbs.) in sequence shown.
7. Tighten bolts (11-20) again to 28 Nm (250 in. lbs.) in sequence shown.
8. After the main bearing bed plate is installed, check the crankshaft turning torque. The turning torque should not exceed 5.6 Nm (50 in. lbs.).