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

[Mike Sylvester]

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
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> >  
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