Detroit Diesel — Disassembly of Cylinder Block (12V and 16V Engines)
Repair & overhaul
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- Do not use a damaged lifter bracket.
- Use a spreader bar and sling with all provided lifter brackets.
Procedure
- Remove the two B bolts and special washers from the oil drain back cavity.
- Attach a suitable lifting bracket to the front cylinder block.
- Attach a chain hoist, lift blocks vertical, rest rear block on a clean flat surface.
- Remove the seven remaining bolts A, C, D and E securing the two blocks.
- Remove the two spacers used on the two D bolts.
- Lift front cylinder block off rear block and remove the seal strip from the rear block groove.
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.