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Home›Repair guides›Detroit Diesel›Remove Fuel Injector

Detroit Diesel — Remove Fuel Injector

Repair & overhaul

From a Detroit Diesel operator's manual — check it applies to your exact model before use.

Before you start

  • Do not turn crankshaft in left-hand direction with wrench on front bolt.

Procedure

  1. Remove valve rocker cover.
  2. Disconnect fuel pipes from injector and connectors.
  3. Cover injector inlet and outlet fittings with shipping caps.
  4. Rotate crankshaft until rocker arms for cylinder are horizontal.
  5. Remove two rocker shaft bracket bolts; swing rocker arms away.
  6. Remove injector clamp bolt, washer, and clamp.
  7. Loosen inner and outer adjusting screws on rack control lever.
  8. Free injector from seat and lift from cylinder head.
  9. Cover injector hole in cylinder head.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Injector clamp bolt torque 20-25 FridayParts $42.95 lb-ft (27-34 Nm)
  • Rocker shaft bolts 90-100 lb-ft (122-136 Nm)

Source: Detroit Diesel operator's 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.

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