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