Detroit Diesel — Fuel Heat Exchanger 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.
- Do not disassemble the fuel heat exchanger; it cannot be serviced.
Procedure
- Disconnect the batteries.
- Open the hood.
- Disconnect the fuel lines on the heat exchanger and discard the seal rings.
- Remove the mounting bolts attaching the fuel heat exchanger to the DDEC-ECU and remove the heat exchanger.
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.