Category Archives: Cummins N14

Steam clean or use solvent, and dry the parts with compressed air. Visually inspect the engine mounts for cracks or deterioration. If cracks or deterioration are found, the engine mounts must be replaced. Visually inspect the engine support bracket for cracks or damage. If cracks or damage are found, the support bracket must be replaced.… Read More »

The following tools are needed to perform this procedure: • Drill ream fixture, Part No. ST-1232, which contains: (1) Plate, Part No. ST-1232-1 (2) Locator pin, Part No. 3375052 (3) Spacer washer, Part No. ST-1232-2 (4) Drill/ream                       Actual sizes depend on the dowel size Bushing… Read More »

Steam clean or use solvent to clean the housing. Dry with compressed air. Visually inspect all surfaces for nicks, burrs, or cracks. Use a fine crocus cloth to remove small nicks and burrs. Inspect all threaded capscrew holes for damage. Repair or replace the housing if the capscrew holes are damaged.    

Heat the outside diameter of the ring gear with a heating torch. Use a blunt chisel and a hammer to remove the gear from the flywheel. Heat the new ring gear in an oven heated to 316°C [600°F] for a minimum of 1 hour. Remove the gear from the oven, and install it on the… Read More »

Cleaning Use a wire brush to clean the crankshaft pilot bore. Steam clean or use a solvent, and dry with compressed air. Inspection Visually inspect for nicks or burrs. Use a fine crocus cloth to remove small nicks and burrs. Use crack detection kit, Part No. 3375432, to check for cracks in the flywheel. Follow… Read More »

Remove the heavy paper and tape from the openings. Remove the warning tag. Use clean diesel fuel to flush the preservative oil from the fuel system. Remove a plug from the main oil rifle drilling. Use a light mineral oil to flush the preservative oil from the engine. NOTE: Use the accessory drive shaft to… Read More »

This procedure describes the proper method to prepare an engine for long term storage (6 to 24 months). NOTE: After 24 months in storage, the engine cooling system must be flushed with a suitable solvent or a light, hot oil. This procedure must then be repeated. Operate the engine at ‘‘High Idle’’ speed until the… Read More »

Remove the tape from the openings. Remove the warning tag. Replace the oil, water, and fuel filters. Prime the lubricating oil system. Refer to Priming the Lubricating Oil System (14-02). Use clean diesel fuel to flush the preservative oil from the fuel system. Fill the cooling system (if necessary). Adjust the injector and valve clearance.… Read More »