Cummins Isx Main And Rod Bearings Torque Specs New Link

Procedures for the connecting rods distinguish between new and used bolts to account for initial bolt stretch. Industrial Parts Depot For NEW Rod Bolts: Hand-tighten all bolts in numerical sequence. Initial Torque: Tighten in sequence to 30 ft-lb [40 N·m] (some sources specify 29 ± 4 ft-lb). Completely loosen all bolts in the same sequence. Second Torque: Tighten in sequence to 52 ft-lb [70 N·m] Final Angle: Rotate each bolt an additional 60 degrees For USED Rod Bolts: Hand-tighten in numerical sequence. Initial Torque: Tighten in sequence to 52 ft-lb [70 N·m] Final Angle: Rotate each bolt an additional 60 degrees Critical Installation Tips Lubrication:

For used bolts, inspect for any signs of stretching or damage. Many professional guides recommend using new head and rod bolts for every major rebuild. Cummins ISX Torque Specs: Main & Rod Bearings, Oil Pump cummins isx main and rod bearings torque specs new

When in doubt, measure twice, torque once, and verify clearance with Plastigage. Procedures for the connecting rods distinguish between new

Ensure the main bearing caps are installed in their original positions and orientations. Caps are numbered and directional. Completely loosen all bolts in the same sequence