After installing flywheel housing, always check the rear and the counterbored faces of the housing to see that they are in alignment with the face of the crankshaft flange. An indicator is used for this purpose. If either the inner or counterbored face of the housing is out of alignment with the crankshaft flange more than .006″, insert a .010″ shim (A-6400) between cylinder block and both the upper bosses on fly wheel housing. If this fails to draw the housing into correct alignment, install a new housing.

After installing a flywheel always check it for

eccentricity and wobble. An indicator is used for this purpose. Both the rear face of the large diameter and the rear hub of the flywheel must be checked. If either the hub or the face of the flywheel are eccentric or wobble more than .005″, a new flywheel should be installed.

The cotter pin in the drain hole in the fly wheel housing is placed there to prevent the hole becoming clogged. The movement of the pin prevents any possibility of dirt or other

foreign matter plugging up the hole.