Engine Covers and Cases

Timing Chain Covers:
The mounting boss for the crankshaft speed and reference sensor has been removed from the lower outer timing chain cover.

The upper inner timing chain cover is modified to house the new camshaft position hall sensor. A bore in the left side of the case aligns the tip of the camshaft position sensor with the metal position disc.

Crankshaft Rear Oil Seal Plate:
The crankshaft rear oil seal housing plate and gasket of the M73 engine are now identical to the cover (and gasket) of the M60 engine.

Rear Coolant Distribution Housing:
The coolant distribution housing mounted on the rear of the cylinder heads merges and directs the outlet coolant flow of each cylinder head to the pump and the heating circuits.

The M73 engine does not have the engine coolant temperature sensors located on the top right edge of the this housing as did the M70.