Tools Required
WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
J 36660-A Torque Angle Meter
- Install the crankshaft bearings into the engine block.
- Apply clean engine oil to the crankshaft bearings.
- Apply clean engine oil to the crankshaft bearing journals.
- Install the crankshaft.
- Install the crankshaft bearings into the crankshaft bearing caps.
- Apply clean engine oil to the crankshaft bearings.
- Install the crankshaft bearing caps in the original position and with the arrow on the crankshaft bearing caps in the direction of the front of the engine block.
- Install the crankshaft bearing cap bolts until snug.
- Thrust the crankshaft rearward in order to set and align the crankshaft thrust bearings and the crankshaft bearing caps.
- Thrust the crankshaft forward in order to align the rear faces of the crankshaft thrust bearings.
NOTE: Refer to FASTENER NOTICE .
- Tighten the crankshaft bearing cap bolts.
Tighten
- 11.1. Tighten the crankshaft bearing cap bolts on the first pass to 20 N.m (15 lb ft).
- 11.2. Tighten the crankshaft bearing cap bolts on the final pass an additional 73 degrees using the J 36660-A .
- Measure the crankshaft end play.
- 12.1. Firmly thrust the crankshaft rearward, and then forward.
This will align the crankshaft rear bearing thrust surfaces.
- 12.2. With the crankshaft pushed forward, insert a feeler gage between the crankshaft and the crankshaft rear bearing thrust surface to measure the clearance.
- Specification
- Crankshaft end play 0.05-0.20 mm (0.002-0.008 in)
- 12.1. Firmly thrust the crankshaft rearward, and then forward.
- Rotate the crankshaft in order to check for binding.
A bent crankshaft or lack of proper crankshaft bearing clearance may cause binding.
- If the crankshaft does not turn freely, loosen the crankshaft bearing cap bolts on 1 crankshaft bearing cap at a time in order to determine the location of the binding.
A lack of proper crankshaft bearing clearance may be caused by the following:
- Burrs on the crankshaft bearing cap
- Foreign material between the crankshaft bearing and the engine block
- Foreign material between the crankshaft bearing and the crankshaft bearing cap
- Damaged crankshaft bearing
- Improper size crankshaft bearing