timing belt skipped Re: How was your trip home?

Denis sparkplugvw at hotmail.com
Tue Dec 28 12:52:04 EST 2004


  Hmmmmm, what about opened valves ?
  I tried and the air goes trought the opened valves.....

  The air goes to the intake then trought the valves. If i dont want air goes trought the valves i must remove the cam to let all valves at rest.

  Ðenis
    ----- Original Message ----- 
    From: SJ 
    To: Denis J 
    Cc: quattro at audifans.com 
    Sent: Sunday, December 26, 2004 12:52 AM
    Subject: Re: timing belt skipped Re: How was your trip home?


    How about using a pressurized intake manifold to find the vacuum leaks?
    You put in pressurized air at 3 PSI . .and look, listen, feel for leaks. You
    can use a soapy water solution(dishwashing liquid detergent) to spray around
    and look for bubbles.
    You can also use a rubber hose as a stethoscope to listen for escaping air
    at various places.

    The intake manifold and engine is a sealed system.(NO)  The only free opening is
    the fuel regulator sensor plate plenum.
    Pressurized air wont get past the valves in the combustion chamber in each
    cylinder.
    Both valves are never open at the same time . . . unless you have a Hot Rod
    for the drag strip.

    Sealing the regulator can be simple, or a little more complicated . depends
    if you have that domed screen that sits on top of the regulator plenum.(Yes i have)

    -------Simple method----------.
    Remove the "air bonnet".
    If you have the domed screen -
    Take a plastic shopping bag, or garbage bag
    Place over the regulator screen and down the sides
    Replace the "air bonnet"
    The intake system is now sealed.

    ------More complicated Method-------

    If you dont have that domed screen, you need to make a plate to support the
    plastic sheet so it doesnt burst.
    A round piece of thin plywood or plastic or metal should do. A trip to the
    junkyard to find a screen might be a good idea.
    Place the round piece of wood on top of the plenum, cover with plastic sheet
    and put on air bonnet.

    Rig something up so you can let in compressed air at 3 PSI into the intake
    manifold. Schraeder valve in a hose maybe, with a T you can also hook up a
    pressure gauge. You can use a bicycle pump of you dont have a compressor.


    SJ
    85 Dodge PU, D-250, 318, auto
    85 Audi 4k - - sold but still on the road
    88 Audi 5kq
    90 Audi 100q


    ----- Original Message ----- 
    From: "Denis J" <sparkplugvw at hotmail.com>
    To: <syljay at optonline.net>; <quattro at audifans.com>
    Sent: Saturday, December 25, 2004 11:20 PM
    Subject: Re: timing belt skipped Re: How was your trip home?


    > I did tried with ether andit accelerate but i cant know where is it
    exactly.
    >
    > As i said i ll change injectors O rings and intake gasket.
    >
    > I ll do the cam cover gasket too.
    >
    > So anything around the place where are leak, i ll change gaskets and O
    rings...
    >
    >
    >
    > Denis
    >
    >
    >
    > >From: SJ <syljay at optonline.net>
    > >To: Denis <sparkplugvw at hotmail.com>
    > >Subject: Re: timing belt skipped Re: How was your trip home?
    > >Date: Sat, 25 Dec 2004 18:58:22 -0500
    > >
    > >Denis
    > >
    > >Here is a trick to help find vacuum leaks.
    > >
    > >Mix solvent(carb cleaner) with ATF(auto transmission fluid). I guess a
    50/50
    > >mix should work.
    > >
    > >Spray this mix around gaskets.
    > >When you hit the leak, the engine RPM's should go up . .AND . you will
    see
    > >white smoke out the exhaust.
    > >
    > >As a test, spray the mix into a vacuum connection just to see what effect
    it
    > >has on the exhaust.
    > >
    > >Disconnect the ISV valve, otherwise you wont notice the RPM changes.
    > >
    > >SJ
    > >85 Dodge PU, D-250, 318, auto
    > >85 Audi 4k - - sold but still on the road
    > >88 Audi 5kq
    > >90 Audi 100q
    > >
    > >
    > >
    >




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