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Date:         Fri, 11 Feb 2000 16:01:36 -0500
Reply-To:     William Maxian <wmaxian@BELLSOUTH.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         William Maxian <wmaxian@BELLSOUTH.NET>
Subject:      Re: Weird Coolant System Behavior
Comments: To: KENWILFY@AOL.COM
Content-Type: text/plain; charset=us-ascii

Increased revs - increased coolant circulation - cooler. Steady increased revs - temp increase - hotter. Seems normal to me. 83.5 Westy

KENWILFY@AOL.COM wrote:

> Had a weird thing happen while checking out a customer's van today. Ran the > van up to temperature and let it idle. It went slowly up to around 3/4 of > the gauge before the fan came on. I put in a new switch that now comes on > right after the needle passes the LED (better). However the van did > something weird when I was trying to warm it up after replacing the switch. > The needle was at the middle (LED) and I wanted it to heat up faster so I > revved the motor up to around 2500 rpms and held it there. As I watched the > needle it actually went down in temp 1/8 of the gauge and then started back > up again! I had never seen this before (usually they hold steady and slowly > climb). Any ideas on this one? Just normal operation and I never noticed it > before (possible)? > The old fan switch might have been good but the part of it that sticks into > the rad was covered with goop (Bar's Leak?) and this could have had an > insulating effect on the sender. > I was wondering if the inside of the radiator is coated with goop if this > could be messing up its heat transfer properties? Any ideas? > > Thanks, > Ken Wilford > http://www.vanagain.com > John 3:16 > Phone: (856)-765-1583 > Shop: (856)-327-0027 > Fax: (856)-327-2242


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