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Date:         Sat, 13 Oct 2012 15:24:36 -0400
Reply-To:     "aka.bugle" <aka.bugle@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "aka.bugle" <aka.bugle@GMAIL.COM>
Subject:      Re: Larger Audi a/t cooler fits transporter
Comments: To: Dennis Haynes <d23haynes57@hotmail.com>
In-Reply-To:  <BAY152-ds19A8A31C2D25B9A891183FA0730@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1

'm not going to submerge it (probably hard to get water out of the atf side of the cooler.) I am going to apply 30 psi to the water side w/ a bicycle pump on one side and a long hose and gauge on the other side. see if it holds 30 psi overnight.

On Sat, Oct 13, 2012 at 11:11 AM, Dennis Haynes <d23haynes57@hotmail.com>wrote:

> Oil-water heat exchangers can leak due to both temperature and pressure. > The > Leaks can also be so small they can't readily be detected. What method are > you planning? I would test the coolant side (easiest to connect to) by > applying shop air and submerging the unit and look for bubbles. After it is > installed and running have oil test performed on the ATF. They will detect > if any antifreeze is getting in there. For the engine oil cooler since the > engine oil pressure is higher than the cooling system pressure a failure > shows as oil in the coolant. > > Dennis > > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > aka.bugle > Sent: Friday, October 12, 2012 8:55 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: Larger Audi a/t cooler fits transporter > > Sweet! > Do we all agree that 30psi is sufficient to test the water side of these > coolers? > > On Fri, Oct 12, 2012 at 8:04 PM, Dennis Haynes > <d23haynes57@hotmail.com>wrote: > > > Yes the larger cooler should work better. Most of the heat is > > generated in the torque converter and it does a great job cooling > > itself with those attached fins. The water to oil cooling approach is > > a bit of an interesting set up. For the most part the transmission > > cooler is in parallel with the radiator. The coolant going to it is > > the same as that going into the radiator. It is the flow (volume) that > > determines the cooling capacity and when underway (radiator has > > sufficient air flow) the coolant flow will be dependent on load and > > speed. Higher load = more cooling! > > > > Dennis > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On > > Behalf Of aka.bugle > > Sent: Friday, October 12, 2012 6:06 PM > > To: vanagon@GERRY.VANAGON.COM > > Subject: Larger Audi a/t cooler fits transporter > > > > Have to pressure test it... but it fits well and is about 3/4" thicker... > > so must be better at cooling eh? > > part # 087.409.061E > > > > -- > > Best Regards, > > ~david > > > > > > > -- > Best Regards, > ~david > >

-- Best Regards, ~david


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