[s-cars] Stumbling saga......quick pressure test question.....

Jerry Scott jerryscott at wispertel.net
Wed Dec 2 12:51:46 PST 2009


With even a small portable compressor, you will find the leak as I did, 
without blocking the breather hose.
Jerry
----- Original Message ----- 
From: "Mike Sylvester" <mike at urq20v.com>
To: <djdawson2 at aol.com>
Cc: <jim at almgt.com>; <s-car-list at audifans.com>
Sent: Wednesday, December 02, 2009 12:49 PM
Subject: Re: [s-cars] Stumbling saga......quick pressure test question.....


> If you don't block the crankcase breather then you loose air out the oil
> fill cap, therefore the pressure never gets high enough to expand the
> MAF hose.
>
> Mike
>
> www.urq20v.com
>
>> -------- Original Message --------
>> Subject: Re: [s-cars] Stumbling saga......quick pressure test
>> question.....
>> From: djdawson2 at aol.com
>> Date: Tue, December 01, 2009 1:56 pm
>> To: mike at urq20v.com
>> Cc: jim at almgt.com, s-car-list at audifans.com
>>
>>
>> Weird... I've done this testing dozens of times and never had that 
>> problem.  I routinely test at 10 psi... and I never block the crankcase. 
>> My compressor has a 60 gallon tank, however.
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Mike Sylvester <mike at urq20v.com>
>> To: djdawson2 at aol.com
>> Cc: jim at almgt.com; s-car-list at audifans.com
>> Sent: Tue, Dec 1, 2009 11:27 am
>> Subject: RE: [s-cars] Stumbling saga......quick pressure test 
>> question.....
>>
>>
>> Even if you block off the crankcase breather, you will not be able to
>> obtain 15psi because the MAF to turbo hose will start to expand.
>> I'm guessing it will eventually burst as it is not meant to hold
>> pressure.
>> I recently attempted to pressure test my 20V urq this way and the MAF to
>> turbo hose expanded to about 6" before I cut the air.
>>
>> Mike
>>
>> www.urq20v.com
>>
>> > -------- Original Message --------
>> > Subject: Re: [s-cars] Stumbling saga......quick pressure test
>> > question.....
>> > From: djdawson2 at aol.com
>> > Date: Tue, December 01, 2009 1:13 pm
>> > To: jim at almgt.com, s-car-list at audifans.com
>> >
>> >
>> > Yeah... disconnect the MAF to turbo hose at the MAF.  Put your pressure 
>> > tester
>> in the end of the hose and clamp it tight.  You will need a regulated 
>> supply of
>> air that is large (compressor tank with regulator), because the system 
>> holds a
>> large volume and air pressure will be constantly lost through the 
>> crankcase.
>> Regulate the air pressure down to 10-15psi and hook your airline to your 
>> tester.
>> >
>> > Dave
>> >
>> >
>> >
>> >
>> >
>> > -----Original Message-----
>> > From: Jim Fleischer <jim at almgt.com>
>> > To: s-car-list at audifans.com
>> > Sent: Tue, Dec 1, 2009 10:56 am
>> > Subject: [s-cars] Stumbling saga......quick pressure test question.....
>> >
>> >
>> > Hey guys,
>> >
>> > Okay, so I'm putting together my pressure test component today, and 
>> > before I
>> > just start undoing hoses, etc. I want to make sure I've got the correct
>> > placement of said tester.  If I'm not mistaken, I attach it to the 
>> > "michelin
>> > man" hose at the top.  Pump up to a reasonable pressure such as 15 psi 
>> > and
>> > listen for leaks.  That it?
>> >
>> > Thanks!
>> >
>> > Jim Fleischer
>> > _______________________________________________
>> > S-CAR-List mailing list
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>> > http://www.audifans.com/kb/List_information
>> >
>> >
>> > =
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