Intake Test? (Vacuul leak checker!)

[Brett Dikeman]

At 11:27 PM -0600 2/10/03, Robert Deis wrote:

>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.

a)on 200q20v's, a #6 Rubbermaid 1-cup container works perfectly for
this.  As close as your nearest grocery store.

b)there's a damn good reason you don't want to overpressurize the
system- the ECU pressure sensor is very expensive.


>Anybody ever tried this on your Audi?  What "leaks" did you find that
>belong there, if any? (ISV, maybe?)

Let's see:

-michelin man hose(two different breaks)
-o-ring between lower metal boost pipe and intercooler inlet(don't
ask, #$@% clownish o-ring joint that leaks like crazy and needs
frequent attention)
-throttle body hose(this one is up in back, joins the upper metal
boost pipe to the throttle body, and has a port for the ISV)
-loose pipe clamp(forget where)

Just this weekend Peter Schulz and I hooked up my 'tester' to his car
and found he's got a leak at the intercooler inlet- the o-ring
strikes again.

Brett
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