Genuine Volvo 780 Distributor

Volvo 780 Distributor Parts and Q&A

• Distributor Assembly
  1276403
  Q: What is the function of the distributor and How to remove and install the EZ115K, EZ116K, and REX-1 systems on Volvo 780?

  A:

  The one and only purpose of the distributor is to distribute voltage to the spark plugs and does not have any advance functions or be able to adjust ignition timing. For removal and installation of the EZ115K, EZ116K and REX-1 systems disconnect the negative battery cable from the battery first, then label and remove the spark plug wires and distributor cap. Next, remove the rotor, dust cover and O-ring, followed by the camshaft center bolt and rotor holder. Pull the distributor housing forward until its base is against the rotor holder, and lightly tap the housing with a hammer, to knock the rotor holder free of the shaft. For installation, the distributor must be placed back, the rotor holder tightened to 52-66 ft. lbs. (70-90 Nm) and the rotor, dust cover, and O-ring and then followed by the distributor cap and spark plug wires, are reinstalled. Finally reconnect the negative battery cable and check the ignition timing if possible. In the EZ129K system, the distributor is made up of a rotor bolted to the end of the intake camshaft; there is no need to remove the housing, and the rotor can be removed directly after the distributor cap is removed.
• Distributor
  1332684
  Q: What is the structure and function of the distributor in Motronic systems on Volvo 780?

  A:

  On these Motronic systems, the distributor consists of a rotor bolted onto the end of the intake camshaft, with no housing to remove. After taking off the distributor cap, the rotor can be detached from the camshaft, allowing for the removal and installation of both components.