The main bearings support the crankshaft, and improperly torqued main bearing caps can lead to crankshaft misalignment, severe vibration, and catastrophic engine failure. For new main bearing installations, a two-step process is used:
Retighten all main bearing capscrews to 70 N•m [52 ft-lb] . cummins isx main and rod bearings torque specs new
Cummins ISX Main and Rod Bearings Torque Specs: Complete Installation Guide The main bearings support the crankshaft, and improperly
Before you install the oil pan and fire up that ISX, run this checklist: The main bearings support the crankshaft
If you are , the procedure is simplified. While often not recommended for critical components, the specification is: