DETROIT DIESEL 53
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 transmission.
The crankshaft rear oil seal, which is pressed into the housing, may be removed or installed without removing the
Remove Flywheel Housing
Mount the engine on an overhaul stand as outlined in Section 1.1.
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.
9. Remove all of the bolts from the flywheel housing. Don't forget the blower-to-flywheel housing bolts on the 3-53
NOTE: When removing the flywheel housing bolts, note the location of the
various size bolts, lock washers, flat washers and copper washers so they may be
reinstalled in their proper location.
10. To guide the flywheel housing until it clears the end of the crankshaft, thread two pilot studs J 7540 into the cylinder
11. 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.
Fig. 1 - Removing or Installing Flywheel Housing
Fig. 2 · Location of Shim