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Mitsubishi S6R S6R2 / S6R- S6R2 — Adjust fuel injection timing

Adjustments · Fuel injection pump coupling

For the Mitsubishi S6R S6R2 / S6R- S6R2, from the Mitsubishi operator's manual.

Applies to: Mitsubishi S6R engine, Mitsubishi PS6 engine

Before you start

  • Do not confuse No. 1 cylinder with No. 6

Procedure

  1. Make sure the timing mark on the caution plate is aligned with the pointer with the piston at TDC on compression.
  2. Loosen two bolts for the fuel injection pump coupling.
  3. Turn the coupling flywheel until its timing mark aligns with the pointer on the fuel injection pump.
  4. Tighten one coupling bolt; turn the engine to tighten the other bolt and the opposite side nut.
  5. Turn the engine two turns to recheck the injection timing.

Tools required

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

Specs & values

  • Injection timing indicated on caution plate attached to No. 1 rocker cover

Source: Mitsubishi 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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