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Boost Leak/ Pressure Tester Write Up

Discussion in 'Forced Induction' started by 92civicb18b1, Jun 13, 2005.

  1. 92civicb18b1

    92civicb18b1 The Trisexual

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    I was explaing to this on an Audi forum so I decided HS could use a new write up.


    Make a pressure tester, and check for leaks. :eek:

    Go to home depot

    Materials:
    -a silicone/rubber coupler to fit over the intake port of the compressor housing.
    -PVC cap to fit INSIDE the coupler you just bought
    -A valve stem or fitting

    Building Procedure:

    -Drill a hole in the PVC cap big enough to pit the valve stem
    -Insert the valve stem and seal it
    -Put the PVC cap in the coupler and clamp it down.


    Operating Procedure:

    -Remove intake tube from turbo, our case would be a filter and a short pipe probably
    -Attach "pressure tester" and clamp it down

    Attach some type of source to the valve stem to pressurize the intake tubes. (i use a regular air compressor)

    Pressurize to about 10-15 lbs. That's what I do anyway, a little more shouldn't hurt.

    Listen for leaks, they're easily noticeable with a hissing sound, also spray some soapy water over ever inch of the intake if you think you're missing something, it will bubble where there are leaks.

    This is a >$10 tool that's extremely useful..

    Believe me this works very well and can save you a buttload of money in unneccassary diagnosing.

    Sorry for the crappy pics, but I still haven't bought a new digicam

    Yes mine is ugly, but it works well.

    [​IMG]

    B needs to put me on the front page. lol
     
  2. smooth_criminal

    smooth_criminal Senior Member

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    thats a pretty good idea, BUT i'm not sure it it's a good idea to force air into the turbo and have it also leak forced air into the exhaust ports of the head? i think it would be a better idea to just hook it up the the charge piping coming out of the turbo. But i could be wrong. Either way i think i'm going ot try it. Just going ot take the turbo out of the loop.
     
  3. 92civicb18b1

    92civicb18b1 The Trisexual

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    it doesn't affect anything. It completely safe tyo use.
     
  4. pissedoffsol

    pissedoffsol RETIRED

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    hrm, i'm not so sure myself. I just don't know either way if there are any adverse effects to putting pressure on the seals of a turbo.
     
  5. driver1

    driver1 Senior Member

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    cant be very good because otherwise blowoff valves would not have a real purpose. I mean isnt that what they are for is to stop boost from heading back to the turbo when the throttlebody plate closes???
     
  6. pissedoffsol

    pissedoffsol RETIRED

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    no- different concept. the bov is to prevent the turbo form having to stop/go backwards from the pressure surge back. this is going scross the seals.
     
  7. driver1

    driver1 Senior Member

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