Loosen the capscrews completely in numerical sequence.
When installing rod bolts, use the following sequence as specified by technical guides like IPD and JustAnswer : cummins isx main and rod bearings torque specs new
The main bearing caps on a Cummins ISX secure the crankshaft to the bedplate/ladder frame. The ISX uses a deep-skirt block with cross-bolted main caps. There are two stages for tightening: standard torque, followed by an angle. Loosen the capscrews completely in numerical sequence
New rod bolts require a "stretch" or "seating" step that used bolts do not. cummins isx main and rod bearings torque specs new