DOWEL 3B2484 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9S-9082 Engine Turning Tool 1
B 9U-5023 Main Bearing Wrench 1
C 2P-5517 Main Bearing Tool 1
D 236-6688 Main Bearing Cap Tool 2 Start By:
Remove the oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01125228
Remove side cover (1) from the cylinder block.
Use Tooling (A) to rotate the counterweight on the crankshaft to the top of the cylinder block.
Illustration 2 g01125196
Use Tooling (B) and loosen bolts (3) for the main bearing cap. Remove the outer bolts from main bearing cap (2).
Illustration 3 g01125192
Install Tooling (D) until Tooling (D) bottoms out in the block. Adjust the nuts on Tooling (D) until the nuts contact the main bearing cap (2). Remove bolts (3) from the main bearing cap.
Illustration 4 g01125205
Loosen the nuts on Tooling (D) evenly in order to lower main bearing cap (2). Lower main bearing cap (2) to the end of the bolt on Tooling (D) in order to gain access to the main bearings.
Illustration 5 g01125209
Use Tooling (A) and rotate the crankshaft until the oil hole of the crankshaft journal is just below the side of the main bearing without the tab. Install Tooling (C) and remove the upper bearing.
The following step is for removing the thrust plates from the cylinder block. Remove the thrust plates on each side of the center main bearing. It may be necessary to move the crankshaft with a prybar in order to remove the thrust bearing from the cylinder block.
Illustration 6 g01125211
Remove lower main bearing (4) from main bearing cap (2). Installation Procedure
Install main bearings (4) in the reverse order of removal.