Always follow a star or crisscross pattern starting from the center main bearing (Journal #4) and working your way outward to the ends (Journals 3, 5, 2, 6, 1, 7). Torque Specifications Torque Value / Angle Initial Torque 150 N·m [110 ft-lb] Step 2 Secondary Torque 300 N·m [221 ft-lb] Step 3 Final Rotation Turn 90 degrees clockwise
Tighten the rod bolts alternatingly to 95 N·m [70 lb-ft] .
To help give you the most accurate advice for your rebuild, please let me know: cummins isx main and rod bearings torque specs new
The connecting rods endure immense stress at high RPMs, and each rod bolt must be precisely torqued. The procedure differs depending on whether you are using new or used bolts.
This guide provides a comprehensive overview of the necessary torque values and procedures for installing new main and rod bearings in your Cummins ISX engine. Always follow a star or crisscross pattern starting
Once a rod cap is fully torqued, check the connecting rod side clearance (axial play) using a feeler gauge between the rod and the crankshaft counterweight.
Retighten all main bearing capscrews to 70 N•m [52 ft-lb] . The procedure differs depending on whether you are
This is the "secret sauce" that prevents the infamous ISX rod knock.
Ensure the bearing tangs are properly seated in the machined notches of the rods and block.
0.051 to 0.114 mm [0.0020 to 0.0045 in]