GM/Detroit 6.5L – Mechanical System – FRONT COVER

The front cover is made of cast aluminum and has several features (figure 2-2):
โ€ข Mounting surfaces for the crankshaft front seal, water pump assembly, injection pump, and
accessory supports
โ€ข Sealing surfaces at the cylinder case and oil pan
โ€ข Cooling system passages
โ€ข A timing bracket for service purposes
โ€ข A hole for the crankshaft sensor machined into the cover
โ€ข A reluctor ring mounted on the end of the crankshaft sprocket
โ€ข A shorter-length collar on the balancer to accommodate the reluctor ring (figure 2-2)