ALARM 2277046 - Caterpillar

start by:a) remove oil pumpb) remove oil pan plate1. Remove the No. 2 and No. 6 main bearing caps (1) for the crankshaft. 2. Use tool (A) to remove upper halves of main bearings as the crankshaft is turned and the bearing is moved out of the block. Remove lower halves (2) of main bearings from caps.3. Put clean SAE 30 engine oil on upper halves of main bearings. Put upper halves of main bearings into place with tool (A).4. Clean the main bearing caps, and install lower halves of bearings in caps. Make sure the crankshaft is held up against the upper main bearings before the bearing clearance is checked.5. Check the bearing clearance with wire (B). Install caps and tighten bolts to a torque of 30 3 lb.ft. (40 4 N m). Put a mark on both bolt heads and bearing caps, then turn each bolt 90° more. Remove bearing caps, and measure thickness of wire. Main bearing clearance with new bearings must be .0030 to .0065 in. (0.076 to 0.165 mm). Maximum permissible clearance with used bearings is .010 in. (0.25 mm).6. Put clean SAE 30 engine oil on threads of cap bolts, face of washers, and lower halves of main bearings. Put the caps (1) in position on engine with number on cap in direction of respective number on face on left side of cylinder block. Install bolts and washers. Tighten both bolts to a torque of 30 3 lb.ft. (40 4 N m). Put a mark on both bolt heads and bearing caps, then turn both bolts 90° more.7. Remove the No. 1, 3, 4, 5 and 7 main bearing caps. Remove the crankshaft thrust bearings. Put clean SAE 30 engine oil on the new thrust bearings and install them in cylinder block with groove in bearing against crankshaft.8. Do Steps 2 through 6 for remainder of bearings. Check crankshaft end play with indicator group (C). End play with new bearings must be .0025 to .0145 in. (0.064 to 0.368 mm). Maximum permissible end play with used bearings is .025 in. (0.64 mm).end by:a) install oil pan plateb) install oil pump