Crankshaft Main Bearing

CRANKSHAFT MAIN BEARINGS






NOTE: Do not reuse the main bearing cap bolts. Always install new bolts.

NOTE: Add a light coating of oil to the crankshaft side of the bearing.

1. Lubricate bolts on the thread and bolt head contact surfaces with engine oil. Install all crankshaft bearing cap bolts finger tight.
2. Stage 1: In the sequence shown in the graphic, tighten the crankshaft bearing cap bolts (1-13) to 35 Nm (26 ft lbs)
3. Stage 2: Turn crankshaft bearing cap bolts an additional 95 degrees.
4. Stage 3: Turn crankshaft bearing cap bolts an additional 95 degrees.
5. Stage 4: In the sequence shown in the graphic, tighten the lateral (side of the block, 1- 8) crankshaft bearing cap bolts to 53 Nm (39 ft lbs).
6. Make sure that the crankshaft turns freely.

Crankshaft Journal Width At Fit Bearing
Identification Colorless/0 29.500 - 29.533 mm (1.16 -1.163 in.)
Red/1 29.600 - 29.633 mm (1.164 -1.166 in.)

Standard Dimension For Main Bearing Shells In Crankcase Upper And Lower Sections - Diameter 70.00 mm (2.755 in.)
Bearing shell thickness (Replacement part additional number (color coding blue) - 52) 2.250 - 2.255 mm (0.0886 -0.0876 in.)
Bearing shell thickness (Replacement part additional number (color coding yellow) - 54) 2.255 - 2.260 mm (0.0876 -0.089 in.)
Bearing shell thickness (Replacement part additional number (color coding red) - 56) 2.260 - 2.265 mm (0.089 -0.0892 in.)
Bearing shell thickness (Replacement part additional number (color coding white) - 57) 2.265 - 2.270 mm (0.089 -0.0894 in.)
Bearing shell thickness (Replacement part additional number (color coding purple) - 58) 2.270 - 2.275 mm (0.0894 -0.0896 in.)

Crankshaft Bearing Clearance (When New) 0.029 - 0.056 mm (0.0012 - 0.0023 in.)