Detroit Diesel — Remove And Disassemble Engine
Repair & overhaul
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- The front engine lifter bracket is not designed to lift more than the basic engine.
- Do not lift an engine by any opening in the cylinder block.
- Make sure the engine is securely fastened to the overhaul stand before releasing the lifting sling.
Procedure
- Drain the cooling system.
- Drain the lubricating oil.
- Disconnect the fuel lines.
- Remove the air silencer or air cleaner and mounting bracket.
- Remove the turbochargers, if used.
- Disconnect the exhaust piping and remove the exhaust manifolds.
- Disconnect the throttle controls.
- Disconnect and remove the starting motor, battery-charging generator or alternator and other electrical equipment.
- Remove the air compressor, if used.
- Remove the radiator and fan guard, or the heat exchanger and related cooling parts.
- Remove the air box drain tubes and fittings; remove the air box covers.
- Disconnect any other lubricating oil lines, fuel lines or electrical connections.
- Separate the engine from the transmission or other driven mechanism.
- Remove the bolts that fasten the engine to the equipment it powers.
- Use a spreader bar with a suitable sling and chain hoist to lift the engine from its base; mount the engine on an overhaul stand.
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.