oil pressure mystery

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    • #10989
      Gerben Haringsma
        @gerbenharingsma

        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
          @gerbenharingsma

          mystery solved !

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

        • #11096
          Laurence Jones
            @laurence_admin

            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
              @gerbenharingsma

              mysterious car,the jaguar.

              the tiny lamp was your resistor ?

            • #11276
              Gerben Haringsma
                @gerbenharingsma

                the resistor should be 15 ohm.

                 

                 

              • #11278
                Gerben Haringsma
                  @gerbenharingsma

                  sorry 150

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