Final Crankshaft Bearing Installation Procedure
Important: If undersized bearings are used, ensure that the bearings are fitted to the proper journals.
1. Install the upper crankshaft bearings to the block.
2. Install the lower crankshaft bearings to the crankshaft bearing caps.
3. Lubricate the crankshaft bearings with clean engine oil.
4. Install the crankshaft.
Notice: In order to prevent the possibility of cylinder block or crankshaft bearing cap damage, the crankshaft bearing caps are tapped into the cylinder block cavity using a brass, lead, or a leather mallet before the attaching bolts are installed. Do not use attaching bolts to pull the crankshaft bearing caps into the seats. Failure to observe this information may damage. a cylinder block or a bearing cap.
5. Install the crankshaft bearing caps and the bolts. Ensure that the arrows on the crankshaft bearings caps are facing the front of the engine. Do not install the rear crankshaft bearing cap at this time.
Important: Tighten inside bearing cap bolts first and outside bearing cap bolts last.
Tighten:Tighten the crankshaft bearing cap bolts to 135 Nm (100 lb ft).
6. Apply anaerobic sealing compound to the rear bearing cap sealing face or to the rear bearing cap channel of the engine block, from the corner of the rear thrust bearing pocket to the edge of the channel.
7. Install the rear crankshaft bearing cap and the bolts to the block.
8. Install the rear crankshaft bearing cap bolts temporarily to 4 Nm (35 lb in).
9. Measure the crankshaft end play as follows:
9.1. Firmly thrust the crankshaft first rearward then forward. This will line up the rear crankshaft bearing and the crankshaft thrust surfaces.
Important: Tighten inside bearing cap bolts first and outside bearing cap bolts last.
Tighten: Tighten the rear crankshaft bearing cap bolts to 135 Nm (100 lb ft).
9.2. With the crankshaft wedged forward, measure at the front end of the rear crankshaft bearing with a feeler gauge. The proper clearance is 0.0508-.2540 mm (0.002-0.010 in).
10. Inspect the crankshaft for binding as follows:
10.1. Try turning the crankshaft to check for binding.
10.2. If the crankshaft does not turn freely, loosen the crankshaft bearing cap bolts on one cap at a time until the tight bearing is located.
10.3. A bent crankshaft or lack of bearing clearance could cause binding.
11. A lack of bearing clearance may be caused by the following conditions:
^ Burrs on the bearing cap.
^ Foreign matter between the bearing and the block.
^ Foreign matter between the bearing and the bearing cap.