Usage:
start by:
a) remove oil pan
1. Remove the bolts and washers that hold main bearing cap (2) in place. Remove the bearing cap and the lower half of the main bearing.
2. Remove bearing (1) from the bearing cap.
NOTE: When removing and installing the No. 1 main bearing cap use tool (C) to remove and install the bolts that hold the bearing cap in place.
3. Turn the crankshaft until tool (A) can be installed in the oil hole in the crankshaft journal. Install tool (A).
4. Remove the upper half of the main bearing by turning the crankshaft and moving the bearing out of the cylinder block with tool (A).
5. Put clean SAE 30 oil on the upper half of the new main bearing. Install the upper half of the main bearing with tool (A).
NOTE: The main bearing half with a hole in it is the upper bearing.
| NOTICE |
|---|
When installing bearings caps make sure the number on the side of the cap is next to and respective with the number on the engine block. |
6. Clean the main bearing cap and install the lower half of the new bearing in the cap.
7. Check the bearing clearance with wire (B). Put cap (3) in position and install the bolts. Tighten bolt (5) to a torque of 30 ± 3 lb. ft. (40.6 ± 4.1 N·m). Tighten bolt (4) to a torque of 30 ± 3 lb. ft. (40.6 ± 4.1 N·m). Put a mark on both bolt heads and the bearing cap. Tighten bolt (4) 120 ± 5° more. Tighten bolt (5) 120 ± 5° more.
8. Remove the bearing cap and measure the thickness of the wire. The main bearing clearance must be .002 to .005 in. (0.05 to 0.13 mm). The maximum permissible clearance is .006 in. (0.15 mm).
9. Put clean SAE 30 oil on the bolt threads, washer faces and lower half of the main bearing. Put the bearing cap and lower half of the main bearing in position on the engine. Install the bolts. Tighten bolt (5) to a torque of 30 ± 3 lb. ft. (40.6 ± 4.7 N·m). Tighten bolt (4) to a torque of 30 ± 3 lb. ft. (40.6 ± 4.1 N·m). Put a mark on both bolt heads and the cap. Tighten bolt (4) 120 ± 5° more. Tighten bolt (5) 120 ± 5° more.
10. Do Steps 2 through 8 for the remainder of the bearings.
11. Check the crankshaft end play with tooling (D). The end play is controlled by the thrust bearing on No. 4 main bearing. The end play with new bearings must be .006 ± .003 in. (0.15 ± 0.08 mm). The maximum permissible end play with used bearings is .014 in. (0.36 mm).
end by:
a) install oil pan