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  • Dual stage vacuum brake booster

    Hi guys. I bought another used dual stage vacuum brake booster. Is it posible to measure lsimply vacuum on these boosters with mityvac? It seems odd that on both boosters i can't measure any vacuum with my mityvac. Maybe thé mityvac isnt so strong to pull vacuum really fast and measure anything...i am little bit confused. I have two used dual stage boosters..each from different car.

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    Audi Coupe Quattro 2.3 20V

  • #2
    Forget to mention that one way valves are working correctly with no leaks

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    Audi Coupe Quattro 2.3 20V

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    • #3
      I found the leak. Its around Bolt holes. After I seal them with tape Its much better And holds vacuum much better. Should be there any seal?

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      Audi Coupe Quattro 2.3 20V

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      • #4
        Actually is around one thread around hole. I Will use some Loctite to Seal IT And should be good. After i used a tape it holds vacuum nicely and still be there after 5mins

        Odesláno z mého ASUS_X00QD pomocí Tapatalk

        Audi Coupe Quattro 2.3 20V

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