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 if any damage is found.
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 removed. Remove the fuel filter spud from the filter head. Remove the fuel heater. The heater will be able to be pulled off the filter head. NOTE: Make sure the… Read More »
Remove the connector from the fuel heater. • Rear gear train • Front gear train. Check for proper voltage to the fuel heater at the OEM connector. Fuel heater voltage: 12-VDC If the voltage is not within specifications, refer to the OEM service manual. Measure the resistance across the two connector pins on the fuel… Read More »
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 bimetallic strip acts as a thermostat. Front Gear Train The fuel heater will turn on below approximately 7°C [45° F] and turn off above approximately 24°C [75°F]. Rear Gear Train… Read More »
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 the push tube hole, through the tappet bore, and into the trough. Feed the installation tool through the camshaft bores by carefully pulling the trough/installation tool out the front of… Read More »
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- do not reuse C Irregular contact – do not reuse. Pit marks on the tappet face are acceptable. The following criteria define the size of the pits allowed. • A… Read More »
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 to push the dowel into the tappet with a soft- face hammer. NOTE: When properly installed, the dowels can be used to pull the tappets up and will require considerable… Read More »
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 damage. Check for cracks where the ball and the socket are pressed into the rod. Check the straightness of the push rod by rolling it on a level surface. Replace… Read More »
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.