To keep your crankshaft held in place.
You should not need to remove the main bearing cap, in order to replace the rear main seal. The rear main seal will come off without touching the main bearing cap.
Main Bearing Cap - Bolt: 81 - 95 NM. Try google
Follow the manufacturers instructions.
The 1999 Saturn main bearing cap torque specifications are 160 pounds per square inch. The main bearing cap bolts should be torqued in 40 pound intervals.
You can purchase new or used bearing caps, but there is machine work required. If you are talking about main bearing caps, the block will need to be line bored with the new cap in place. If you're talking about a connecting rod bearing cap, the rod will need to be resized with the new bearing cap in place.
110 ft. LBS.
The thrust bearing is located in the crankshaft journal. usually in the center main cap. Although sometimes toward the front or rear it is recognizable, the only main bearing with sides.
The service manual says: Main bearing cap bolts 60N-m (44 ft-lbs) Connecting rob bearing cap bolts 29N-m (22 ft-lbs) then tighten an additional 90 degrees.
back of the oil pan Inside the last main bearing cap.
Torque specs for main bearing
No, just the rear main cap if your doing the rear main seal.MAke sure you add a small dab of silicone on the corners of the main cap where the rope seal meets.
All main bearing caps should be tightened to 85 foot-pounds.