• Lagonda1928
    9 March 2019 at 20:33 #52995

    Bishopgray have recently done an excellent job refurbishing the Autovac on my 2 Litre High Chassis but this has now revealed that the main/reserve fuel switch (picture attached) is leaking as the internal cork gaskets have reached the end of their life. They are 3/4 inch diameter and one is maybe 1mm thick and the other around 6mm.
    I was wondering if anyone knows anyone that supplies replacement gaskets for this application ( I think that the club ones are a lager diameter) or a supplier of a suitable material (nitrile rubber ?) from which I can make some ? If anyone can confirm the exact initial thicknesses that would also be useful as its difficult to tell from whats left of mine.

    Attached files

    John Hugh
    24 March 2019 at 11:08 #53004

    I’ve the same problem and have (temporarily I hope) replaced the elegant original switch with one of the commercially available Enots c/o taps. It does the job but looks very wrong. Have you had any responses or suggestions? It seems odd that the corks for the larger tap are readily available but not for the one used on the 14/60 and Speed models.

    Graham Swindley
    23 May 2020 at 18:39 #53149

    Hi gentlemen,
    I have my fuel system down presently and am also considering the condition of this valve. Did either of you solve the problem of gaskets?
    Thanks
    Graham

    Graham Swindley
    23 May 2020 at 18:40 #53150

    Hi gentlemen,
    I have my fuel system down presently and am also considering the condition of this valve. Did either of you solve the problem of gaskets?
    Thanks
    Graham

    Lagonda1928
    30 May 2020 at 23:27 #53157

    I would suggest that you might try contacting Bishopgray and see if they can help you.

    There is another potential issue with the fuel switch in that the internal hole diameters are slightly too small and can restrict fuel flow particularly when running for long periods with large throttle openings such as on a Motorway….. which probably wasnt a big problem in the 1920’s ! While you are working on the switch, unless this has already been done, it might also be worthwhile trying to see if you can get the holes enlarged.

    Graham Swindley
    31 May 2020 at 14:06 #53158

    Lagonda1928 wrote: I would suggest that you might try contacting Bishopgray and see if they can help you.

    There is another potential issue with the fuel switch in that the internal hole diameters are slightly too small and can restrict fuel flow particularly when running for long periods with large throttle openings such as on a Motorway….. which probably wasnt a big problem in the 1920’s ! While you are working on the switch, unless this has already been done, it might also be worthwhile trying to see if you can get the holes enlarged.

    Thanks for this. Graham

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