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Date:         Wed, 28 Apr 2010 10:49:11 -0500
Reply-To:     Jim Felder <jim.felder@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Jim Felder <jim.felder@GMAIL.COM>
Subject:      Re: Headgasket diagnostic "trick"
Comments: To: Don Hanson <dhanson928@gmail.com>
In-Reply-To:  <p2l6bc66ccf1004280631o5327b663w618849621222ac5@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Sure it will work, except in those extreme circumstances where the engine has to be under a big load to open the leak. Those are hard to find.

I have always done a similar test that doesn't use the glove (though I'd like to try it--strike that, I don't want a leaking head so I don't want to try it) but rather you just start the car from cold and run it about 30 seconds and shut it off. It doesn't have enough time to create pressure from normal engine heat, so if you remove the tank cap and hear a burp, you know you have a leak.

Eventually that coolant is going to look dirty, anyway.

Jim

On Wed, Apr 28, 2010 at 8:31 AM, Don Hanson <dhanson928@gmail.com> wrote: >  Paging around on the VW Vortex Forums to gather info on my probable > headgasket failure and replacement.  Saw this suggestion to see if you may > have a blown headgasket... > >  They say stick a latex glove over your pressure tank cap and start up the > vehicle.  If the glove 'waves at you' by filling up with leaked gasses > coming into the pressure reservoir, you got the leaky gasket...I thought > that was pretty clever.  Love little 'tricks' like this... > >  Don't bother telling me this is NOT gonna work...I already know there are > probably dozens of reasons why this is 'internet crap'...but it can work > sometimes, I bet. > >  Don Hanson >


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