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Home›Repair guides›Wastegate Actuator Removal

Detroit Diesel — Wastegate Actuator Removal

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

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Before you start

  • There is significant tension on the actuator rod and swing arm. Take care not to damage the swing arm pin when removing the adjusting rod.

Procedure

  1. Shut off the engine, apply the parking brake, chock the wheels, and perform any other applicable safety steps.
  2. Remove the turbocharger. Refer to section 6.7.2.
  3. Loosen the jam nut on the wastegate adjusting rod.
  4. Remove the two nuts securing the actuator to the actuator bracket.
  5. Remove and discard the E-clip holding the adjusting rod onto the actuator swing-arm pin.
  6. Remove the adjusting rod and jam nut from the actuator swing-arm pin.
  7. Remove the adjusting rod and jam nut from the actuator rod.
  8. Remove the actuator and heat shield from the mounting bracket.

Tools required

  • socket wrench

Specs & torque values

  • Actuator assembly with mounting nuts and jam nut
  • E-clip holding adjusting rod

Source: manual:609-09 - EPA07 MBE 4000 TURBOCHARGER ACTUATOR (WASTEGATE) REPLACEMENT.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.