Proper check valve placement for Boxer master vac | FerrariChat

Proper check valve placement for Boxer master vac

Discussion in 'Boxers/TR/M' started by Ludwig, Apr 30, 2020.

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  1. Ludwig

    Ludwig Formula Junior

    Mar 27, 2006
    307
    Redmond WA
    Full Name:
    Ludwig Allegra
    #1 Ludwig, Apr 30, 2020
    I have finally had the time to make major progress on my Boxer restoration- amazing how the state shutting us down incentivizes!
    I'll refresh my thread over the next few days.

    Meanwhile, a quick question- where is the correct placement for the check valve? I am assuming that the logical point would just after the manifold vac port but before the mechanical vac pump. This would then maximize vacuum
    from either manifold when it is higher or supplemetal mecanical when not.

    Is this correct?

    Thanks
     
  2. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,148
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    Newman
    #2 Newman, Apr 30, 2020
    Its after the Tee close to the fuel tank
     
  3. pshoejberg

    pshoejberg Formula 3
    Silver Subscribed

    Dec 22, 2007
    1,694
    Denmark
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    Peter H
    #3 pshoejberg, May 1, 2020
    This is where I found my my non return valve positioned. Maybe Newman can verify if this is the correct location? I'm looking forward to see your progress on the project.

    Best, Peter

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  4. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
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    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #4 Steve Magnusson, May 1, 2020
    I'll give F a low mark for not making this clearer in the SPCs for both Boxers and TR ;) -- your description for the needed functionality is correct:
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    turbo-joe likes this.
  5. Newman

    Newman F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 26, 2001
    14,148
    Canada
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    Newman
    #5 Newman, May 2, 2020
    I see that too, Ive seen them in both locations, if its further up the line there's no chance of losing vacuum through the pump. There is a check valve on the pump as well and make sure the arrow is pointing to the engine when you install the in-line one.
     
  6. Ludwig

    Ludwig Formula Junior

    Mar 27, 2006
    307
    Redmond WA
    Full Name:
    Ludwig Allegra
    #6 Ludwig, May 4, 2020
    Yes this is how I installed it- makes a lot of sense- had been mis-installed previously on mine and I had trouble with poor brake assist. This should fix it.
     

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