Inspect the o-rings (1) for damage. Replace the damaged o-rings. Inspect the fuel heater for broken terminals (1) or other damage. Replace the fuel heater…

Rear Gear Train NOTE: Make sure the fuel filter seal ring is not stuck to the bottom of the fuel heater when the filter is…

Remove the connector from the fuel heater. • Rear gear train • Front gear train. Check for proper voltage to the fuel heater at the…

This procedure applies to all engines equipped with Cummins®/Fieetguard® fuel heaters. NOTE: The fuel heater is not controlled by the electronic control module (ECM}. A…

Insert the trough from the tappet replacement kit, Part Number 3822513, the full length of the camshaft bore. Lower the tappet installation tool down through…

Clean the tappets with solvent. Inspect the socket, stem, and face for excessive wear, cracks, and other damage. A Normal contact (exaggerated) B Irregular contact-…

Use tappet removal tool kit, Part Number 3822513, to remove the tappets. Push a wooden dowel rod into each tappet. It will probably be necessary…

Install the push rods into the sockets of the valve tappets. Lubricate the push rod sockets with clean 15W-40 engine oil.  

Clean the push rods in hot, soapy water and dry with compressed air. Inspect both ends of the push rods for wear, scores, or other…

Mark the push rods to identify their location. NOTE: The push rods must be installed in their original location and position. Remove the push rods.…