oil pressure mystery

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    • #10989
      Gerben Haringsma
      Participant

      ignition off , no oil pressure

      ignition on, oil pressure at 5

      start engine,oil pressure at 7

      rev up moves out of scale.

      cleaned contacts on instrument gauge.

      changed sender unit to new one.

      Visualy checked wires as much as possible.

      any one,to help solve the mystery ?

    • #11094
      Gerben Haringsma
      Participant

      mystery solved !

      a resistor has to be instaled,getting the 5 back to zero.

    • #11096
      Laurence Jones
      Keymaster

      Hi Gerben Haringsma

      While I couldn’t solve your problem, I do recognise the solution – on my XJS 4.0 litre coupe there is a mysterious tiny bulb in the engine bay, that when removed makes the oil gauge at the top.

      Glad you solved it.

      Laurence

       

    • #11100
      Gerben Haringsma
      Participant

      mysterious car,the jaguar.

      the tiny lamp was your resistor ?

    • #11276
      Gerben Haringsma
      Participant

      the resistor should be 15 ohm.

       

       

    • #11278
      Gerben Haringsma
      Participant

      sorry 150

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