Are you doing a or just a standard bearing roll-in?
The of your ISX (e.g., CM870, CM871, CM2250, or X15)? cummins isx main and rod bearings torque specs new
Clean the threads thoroughly and apply a light coat of clean 15W-40 oil or high-pressure assembly lube to the bolt threads and the underside of the bolt head. Are you doing a or just a standard bearing roll-in
Tighten both capscrews on the main bearing cap to 150 ft-lb (203 N•m). Step 2: Loosen both capscrews completely. Step 3: Tighten to a base torque of 110 ft-lb (149 N•m). Tighten both capscrews on the main bearing cap
Always follow the manufacturer's specified cross-pattern sequence, starting from the center main cap (Journal No. 4) and working outward to the front and rear of the engine block. Action / Specification Tighten all main bearing cap bolts to 150 N·m [111 lb-ft] Step 2 Tighten all main bearing cap bolts to 300 N·m [221 lb-ft] Step 3 Loosen all bolts completely to relieve initial stress. Step 4