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Home›Repair guides›Removal of Straight Tube and Flange Assembly from EGR System

Detroit Diesel — Removal of Straight Tube and Flange Assembly from EGR System

A Detroit Diesel service procedure — check it applies to your exact model before use.

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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

  1. Apply the parking brake, chock the wheels, disconnect vehicle battery power, and perform any other applicable safety steps.
  2. Loosen the clamps on the EGR delivery pipe hose and straight tube. Push the delivery pipe hose upward onto the delivery pipe.
  3. Remove the four bolts from the EGR straight tube and flange (1).
  4. Remove the straight tube and flange assembly (1) from the engine, remove the O-ring and discard.
  5. Remove the EGR Valve (3) and EGR heater (if equipped) (2) from the engine; remove the O-ring and discard.
  6. Slide the EGR delivery pipe hose off the delivery pipe.

Tools required

  • socket wrench
  • clamp tool

Specs & torque values

  • EGR straight tube and flange assembly
  • O-rings (discard after removal)
  • EGR delivery pipe hose

Source: manual:08 60-7 EGR RATE MEASUREMENT SYSTEM.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.