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VOLVO Fuel Injection Pump Timing

  1. Remove rear timing gear cover. Disconnect cold start device by loosening screw "1", pushing lever forward and rotating it 90°. DO NOT touch screw "2". If it is loosened, cold start device must be reset on a test bench.
    Fig 1: Volvo Cold Start Device Connections
    G09315360Courtesy of PEUGEOT MOTORS OF AMERICA, INC.

    DO NOT touch screw "2". 

  2. Set cylinder No. 1 at TDC and injection. Both cam lobes should point up at equally large angles. Flywheel timing mark should be at "0". See Figure.
  3. Remove plug from injection pump cover. Install dial indicator holder (5194) and a 0-.12" (0-3 mm) dial indicator gauge.
  4. Preset indicator to approximately 0.08" (2 mm). Turn engine counterclockwise until indicator gauge is at minimum. Set gauge to zero.
    Fig 2: Volvo Fuel Injection Pump Timing
    G09315361Courtesy of PEUGEOT MOTORS OF AMERICA, INC.
  5. Turn engine clockwise until flywheel "0" mark aligns with arrow. Indicator gauge should now read 0.0256 - 0.0287" (.65-.73 mm).
    NOTE: These specifications are for checking pump setting. When actually setting pump, reading should be exactly 0.028" (.70 mm). Also, when making check, if engine is turned too far past "0" mark, it must be turned back approximately 1/4 turn and then clockwise again to "0" or settings will be incorrect.
  6. If reading is less than 0.0256" (.65 mm), loosen injection pump retaining bolts. Turn injection pump inward until 0.028" (.70 mm) is indicated on gauge. Tighten retaining bolts.
  7. If reading is more than 0.0287" (.73 mm), loosen injection pump retaining bolts. Turn injection pump outward until reading is approximately 0.0236" (.60 mm) and then turn pump inward until it is at 0.028" (.70 mm). Tighten retaining bolts.
    CAUTION: If adjusting allowances in steps  5 and  6 are insufficient, do not tap or knock injection pump to change setting. It may be camshaft is not in proper relationship to crankshaft and/or front or rear drive belts may be improperly tensioned. Correct this and then set injection timing.
  8. After adjusting injection pump setting, turn engine twice and recheck setting. Readjust as necessary. Remove dial indicator and holder. Install rear timing gear cover.
  9. Reconnect cold start device. DO NOT turn screw "2". Push lever forward and turn sleeve 90°. Tighten screw "1".
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