Category Archives: 6.7L Cummins

For an aluminum ECM mounting plate, remove the three capscrews holding the ECM mounting plate on the steel yoke.  

Remove the three capscrews holding the ECM mounting plate to the cylinder block. NOTE: Do not lose the vibration isolators while removing the capscrews. NOTE: On engines with an aluminum ECM mounting plate, the steel yoke and ECM mounting plate are removed as an assembly

The ECM mounting plate is located between the ECM and the cylinder block, and is made of either aluminum or nylon. An aluminum ECM mounting plate has fins on the engine side, used to cool the ECM, and a steel yoke for attaching to the cylinder block.  

NOTE: The block stiffener plate must be installed so the center ribs are bent away from the block, to ensure proper clearance from the block main caps. NOTE: For some oil pan/oil suction tube configurations, one of the block stiffener mounting capscrews can be different than the rest. This capscrew, with a lower head profile,… Read More »

Clean the block stiffener plate with solvent. Dry with compressed air. Check the block stiffener plate for cracks. Replace if damage is present.  

NOTE: For some oil pan/oil suction tube configurations, the block stiffener plate capscrew closest to the lubricating oil suction tube can be different than the rest. If equipped, note the capscrews location for installation. The low profile capscrew ensures in some applications that there is sufficient clearance between the oil suction tube and the block… Read More »

Crankshaft Speed/Position Sensor Air Gap Check With the vibration damper and crankshaft speed indicator ring installed, use a feeler gauge to measure the air gap between the crankshaft speed/position sensor and crankshaft speed indicator ring. If the air gap is not within specification, remove and inspect the crankshaft speed/position sensor for damage.  

The crankshaft speed indicator ring is permanently attached to the vibration damper. If the crankshaft speed indicator ring is damaged and/or requires replacement, the vibration damper/crankshaft speed indicator ring must be replaced as an assembly. Refer to Procedure 001-052 in Section 1.

Front Gear Train Service Tip: If the oil pan gasket was damaged during removal of the rear seal carrier, remove the damaged gasket and: • If previously equipped with a paper oil pan gasket, use the old gasket as a pattern and cut a section of a new gasket to the same size. Use a… Read More »

For front gear train engines, clean the gasket surface of the cylinder block and rear seal carrier. Dry these areas with compressed air. If equipped, inspect the rear seal carrier for cracks or other damage. Replace the rear seal carrier if any damage is found. For rear gear train engines, clean the flywheel housing bore… Read More »