Detroit Diesel — Removal of Straight Tube and Flange Assembly
Repair & overhaul · EGR straight tube and flange assembly
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- To avoid injury, never remove any engine component while the engine is running.
- To avoid injury from accidental engine startup while servicing the engine, disconnect/disable the starting system.
Procedure
- Apply the parking brake, chock the wheels, disconnect vehicle battery power, and perform any other applicable safety steps.
- Loosen the clamps on the EGR delivery pipe hose and straight tube. Push the delivery pipe hose upward onto the delivery pipe.
- Remove the four bolts from the EGR straight tube and flange (1).
- Remove the straight tube and flange assembly (1) from the engine, remove the O-ring and discard.
- Remove the EGR Valve (3) and EGR heater (if equipped) (2) from the engine; remove the O-ring and discard.
- Slide the EGR delivery pipe hose off the delivery pipe.
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.