Detroit Diesel — Remove Flywheel Housing
Repair & overhaul
From a Detroit Diesel service manual — check it applies to your exact model before use.
Procedure
- Remove the engine and place it on an engine overhaul stand.
- Remove the starting motors, outboard bearing support and all of the accessories and cover plates attached to the flywheel housing.
- Loosen the bolts securing the upper oil pan to the cylinder block and remove the four bolts, lock washers and shims attaching the flywheel housing to the oil pan.
- Lower the oil pan just enough to allow removal of the flywheel housing.
- Remove the flywheel.
- Remove the camshaft drive gear assemblies.
- Remove the seventeen bolts located in the bell of the housing; install two pilot studs to guide the housing.
- Remove the remaining bolts around the upper portion of the flywheel housing.
- Support the flywheel housing by its lifter brackets and strike the front face alternately on each side to free it from the dowels; remove the flywheel housing and seal strip.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Detroit Diesel service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.