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Date:         Fri, 15 May 2009 15:27:45 -0700
Reply-To:     John Bange <jbange@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Bange <jbange@GMAIL.COM>
Subject:      Re: GoWesty coolant repair kit vs SS pipes
In-Reply-To:  <4A0D8121.3090907@comcast.net>
Content-Type: text/plain; charset=ISO-8859-1

On Fri, May 15, 2009 at 7:50 AM, Ken Wilford <kenwilfy@comcast.net> wrote: > What pops it out of the end of the pipe is coolant pressure not some type of > "toothpaste tube squeeze" effect.

That sounds plausible, but if so, then the GoWesty fix should have absolutely no effect. If hydraulic pressure is exerting force on the hose, which causes the hose to slide off the pipe pulling the insert with it, then the hose and insert don't move in relation to one another, and the GoWesty insert does nothing. If the steel insert moves WITHIN the hose while the hose stays still on the plastic pipe, then it's definitely NOT hydraulic pressure causing the failure, and the GoWesty fix works. Has anyone seen a pipe with the GoWesty fix exhibit any extrusion of the steel insert?

>  Think about it, is the clamp getting > tighter and tighter like the toothpaste tube?  Of course not.

Yes it is. Even a simple "cheese grater" hose clamp will continue to exert pressure so long as the compressed rubber underneath it still retains potential energy. An OEM VW spring-type hose clamp even more so, as it's a COMPRESSED SPRING squeezing the plastic tube. This is simple physics.

-- John Bange '90 Vanagon - "Lastwagen" '90 Vanagon GL - "Wiesel"


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