Detroit Diesel — Fuel Pump Removal
Repair & overhaul
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- FIRE: keep all potential ignition sources away from diesel fuel.
- PERSONAL INJURY: wear a face shield or goggles.
Procedure
- Disconnect the batteries.
- Open the fuel tank fill cap to release pressure; replace and tighten the cap.
- Remove the fuel lines from the fuel pump; discard the seal rings on the banjo fitting.
- Remove the socket-head bolts attaching the fuel pump to the cylinder block; discard the gasket.
- Slowly remove the fuel pump, taking care not to damage the splined shaft.
- Discharge the fuel pump gasket.
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.