Cummins Isx Main And Rod Bearings Torque Specs New 2021

| Step | Action | Specification | | --- | --- | --- | | 1 | Clean threads & underhead | No debris. Light engine oil only. | | 2 | Initial torque | | | 3 | Final torque | Angle-turn + 60 degrees (Do not exceed 75 degrees) |

Connecting rod bolts experience extreme alternating tensile loads. Precise torque is mandatory to keep the rod cap perfectly round around the crankshaft journal. Torque Specification Steps

The ISX connecting rod uses a fracture-split design. The bolts are —they permanently stretch during installation. Never reuse ISX rod bolts. Always install new bolts with new bearings.