Intake Test? (Vacuul leak checker!)

[R Mangas]

  I've done this on my turbo Miata countless times, and my DSM before that.
Works fabulously, but as Robert points out, take it easy on the pressure.

  Dunno why but the idea of using on a normally aspirated car never even
occured to me, DOH!  The CIS-E cars are so susceptable to vac leaks that it
should be a standard maintenance check!

Robert




>From: Robert Deis <rdeis at io.com>
>To: quattro at audifans.com
>Subject: Intake Test? (Vacuul leak checker!)
>Date: Mon, 10 Feb 2003 23:27:34 -0600 (CST)
>
>
>Started using a tool on the "other" car today, and am now anxious to hook
>it up to the 5K wagon.  The thing cost $5 to make, and found vacuum
>previously unknown vacuum/boost leaks in every single car it's been hooked
>up to so far:
>
>Tool is a simple air fitting screwed into a PVC pipe cap, with a robber
>coupler that mates the cap to the turbo inlet.  Add air from a REGULATED
>SOURCE (no sense blowing anything up with 60psi...) up to the boost
>pressure you expect to see, then listen.
>
>All those sssssssshhhing sounds are probably bad. (-:  Identify each one
>until you can confirm they belong there or have fixed it, and you're
>boost-leak free!
>
>Since I'm barely making 1.1 bar most of the time, I'm certain to find some
>nagging problems this way.  Maybe the seals on the throttle plate pivot
>pin are shot on my T44, too, though I'll bet that's the smallest of my
>problems....
>
>Anybody ever tried this on your Audi?  What "leaks" did you find that
>belong there, if any? (ISV, maybe?)
>--
>------------------------------------------------------------------------------
>   Rob Deis                  "Let the people know beforehand what the law
>   MiB3347                      is and what they are to expect."
>   rdeis at io.com                              -- 18th Congress, Rec. 75


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