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Blow by Valve

Discussion in '206/246' started by isuk, May 26, 2011.

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  1. isuk

    isuk F1 Rookie

    Nov 11, 2005
    3,332
    UK
    Full Name:
    Iain
    #1 isuk, May 26, 2011
    Last edited by a moderator: Sep 7, 2017
    Can anyone help me to locate a replacement rubber seal for the blow by valve assembly shown as part number 5 on this Tavola schematic? My car is suffering from vapour lock every time I refuel which makes restarting it a challenge and this part could be the source of the problem as it is worn and not making a decent seal. I don't know if the part is still available anywhere or if anyone has found a suitable alternative? Any help would be greatly appreciated.
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  2. racerboy9

    racerboy9 F1 Rookie
    Silver Subscribed

    Nov 3, 2003
    2,650
    #2 racerboy9, May 26, 2011
    That is a phenolic disc, not rubber. McCann used to have some but probably all gone now. If you could find the right thickness phenolic sheet you could make one.
     
  3. simonc

    simonc Formula Junior

    Nov 1, 2003
    884
    Herfordshire, UK
    Full Name:
    Simon Campbell
    #3 simonc, May 26, 2011
    On my car the valve was also missing and I could not find one anywhere. I just put the need for this on the long 'to find' list that you write with these cars.

    But if you do not block off the pipes 24 & 25 in you diagram you will never get the car running right as these will be sucking air all the time directly into the inlet manifold. I blocked mine off with small bolts and hose pipe clamps and then just used cable ties to hold the pipes steady to a nearby bracket. Sorry I haven't got any pictures but I am sure you can see what I mean.

    Simon
     
  4. Dino Club Germany

    Dino Club Germany Formula Junior

    Nov 10, 2008
    549
    Germany
    Full Name:
    N. Schumacher
    #4 Dino Club Germany, May 27, 2011
    Sorry to say, but the valve will not have an influence on your problem.
    There is no connection between refuelling and the blw by mechanism.
    If you have problems with hot start (which is usual on the Dino)
    you have to start with full throttler without pushing the pedal often.
     

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