INSTALLATION - CRANKSHAFT MAIN BEARINGS

NOTE:
One main bearing should be selectively fitted while all other main bearing caps are properly tightened.
1.
For main bearing fitting procedure,
(Refer to 9 - ENGINE/ENGINE BLOCK/CRANKSHAFT MAIN BEARINGS - STANDARD PROCEDURE)
2.
Start bearing in place, and insert Main Bearing Tool C-3059 into oil hole of crankshaft .
3.
Slowly rotate crankshaft counterclockwise sliding the bearing into position. Remove Special Main Bearing Tool C-3059.
4.
Inspect main cap bolts for stretching . Replace bolts that are stretched.
NOTE:
The main cap bolts should be examined before reuse. Bolt stretch can be checked by holding a scale or straight edge against the threads. If all the threads do not contact the
scale the bolt must be replaced .
5.
Install each main cap and tighten bolts finger tight.
6.
Tighten number 1, 3 and 4 main cap bolts to 41 Nm + 1/4 Turn (30 ft. lbs.+ 1/4 Turn).
7.
Rotate the crankshaft until the number 6 piston is at TDC.
8.
To ensure correct thrust bearing alignment the following procedure must be done:
-
Move crankshaft all the way to the rear of its travel.
-
Then, move crankshaft all the way to the front of its travel.
-
Wedge an appropriate tool between the rear of the cylinder block and rear crankshaft counterweight. This will hold the crankshaft in it's most forward position.
-
Tighten the #2 Thrust Bearing cap bolts to 41 Nm + 1/4 Turn (30 ft. lbs.+ 1/4 Turn). Remove the holding tool.
9.
Install oil pan.
(Refer to 9 - ENGINE/LUBRICATION/OIL PAN - INSTALLATION)
10.
Fill engine crankcase with proper oil to correct level.