The flywheel housing is a one-piece casting, mounted against the rear cylinder block end plate, which provides
a cover for the gear train and the flywheel. It also serves as a support for the starting motor and the
The crankshaft rear oil seal, which is pressed into the housing, may be removed or installed without removing
the housing (Crankshaft Oil Seals).
Remove Flywheel Housing
Mount the engine on an overhaul stand as outlined in Cylinder Block.
Remove the starting motor from the flywheel housing or the clutch housing.
Remove the flywheel.
Remove the oil pan.
Remove the clutch housing, if used.
Remove the fuel pump, if it is mounted on the flywheel housing.
Remove all the bolts from the flywheel housing.
When removing the flywheel housing bolts, note the location of the various size
bolts, lockwashers, flat washers, and copper washers so they may be reinstalled in
their proper location.
To guide the flywheel housing until it clears the end of the crank- shaft, thread two pilot studs J
7540 into the cylinder block (Fig. 1).
Figure 1. Removing or Installing Flywheel Housing
Thread eyebolts into the tapped holes in the pads (if provided) on the top or sides of the flywheel
housing and attach a chain hoist with a suitable sling to the eyebolts. Then strike the front face of the housing
alternately on each side with a soft hammer to loosen and work it off the dowel pins.
Clean the flywheel housing and inspect it for cracks or any other damage.