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Date:         Sun, 31 Dec 2006 20:13:56 -0500
Reply-To:     John Lauterbach <lauterba@BELLSOUTH.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Lauterbach <lauterba@BELLSOUTH.NET>
Subject:      Re: Leak Down Testing
Comments: To: Geza Polony <gezapolony@SBCGLOBAL.NET>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=original

Geza, what I think people are telling you is that the air has to go somewhere even after it pushes the piston down. Before I put a new long block in the exhaust gases (leaking heads) would bubble up through the coolant in the overflow tank.

John ----- Original Message ----- From: "Geza Polony" <gezapolony@SBCGLOBAL.NET> To: <vanagon@GERRY.VANAGON.COM> Sent: Sunday, December 31, 2006 7:54 PM Subject: Re: Leak Down Testing

> John, > > What I'm reading from this person's description is basically that you pump > air into the spark plug holes and listen where it comes out--exhaust, > intake, or coolant. Why do you need even to measure the pressure? Are > there > some specs to measure against, eg., each cylinder should hold x amount of > pressure for x seconds? If so, what are the specs? I've never done one of > these tests before. > > Thanks, > > > Geza >


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