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Loosen the third injection pump sprocket mounting bolt (arrow) only enough to allow movement of the sprocket on the hub. Move the hub/injection pump shaft to adjust timing.

  • Advance timing
    (start of injection)..........Move hub to the right (clockwise)
  • Retard timing
    (start of injection)..........Move hub to the left (counter-clockwise)
  • Tighten injection pump sprocket bolts to stage I specification only, start engine and recheck timing value as given earlier. Repeat procedure as necessary to obtain correct timing value.

Before Performing any Work

Please read Cautions and Warnings before proceeding with any work on your vehicle

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Hub-injection pump shaft rotation - page 23-20 (VB02)

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