Date: Fri, 19 Jul 1996 08:23:02 -0400
Sender: Vanagon Mailing List <vanagon@vanagon.com>
From: "Frank E. Terhaar-Yonkers" <fty@mcnc.org>
Subject: Re: Greetings Again & Overheat Help
I think you have a clogged radiator.
Been there, done that.
Take the rad to a shop and have it flow tested and "rodded out".
Beware - depending on the type of corrosion and gook in the rad, the rodding
out process may be only a temporary fix. Expect to pay $50 for the process
if you carry in the rad, $100 or more if they take it out.
good luck - Frank
BTW - new rad is $400+ (which is what I ended up doing :-( )
>Date: Thu, 18 Jul 1996 16:47:26 -0500
>From: Paul Uusitalo <puusital@mv.us.adobe.com>
>To: Multiple recipients of list <vanagon@lenti.med.umn.edu>
>Subject: Greetings Again & Overheat Help
>
>Hello All:
>
>As a desperate measure to preserve my sanity (and to keep some portion of
>the day for doing my actual job), I dropped off the list about 6 months
>ago. But news of the water/air split was enough to get me to resubscribe
>and see if I can bear the traffic, so here I am.
>
>And wouldn't you know it, I've got a problem.
>
>Over the past month or so, my '87 (Syncro Westy) with 69k miles has begun
>running hot. Historically, the temp. gauge would sit right at the center
>(over the warning light) when the engine was at operating temp., and the
>cooling fan would only kick on in warm weather traffic. Now, in cool
>weather it's running 2/3 towards the top of the gauge, and the fan is
>coming on any time I'm not at highway speed.
>
>I took it into the shop where we've done the following:
>
>new thermostat & bleed system - No change
>system pressure test - OK
>2 different tests for CO2 in coolant - Negative
>thermal probe test of coolant temp - roughly normal at engine outflow,
>radiator, engine intake.
>exam all hoses, etc. - OK
>
>Other info:
>
>no abnormal water pump noises
>no coolant backup into overflow tank
>coolant has been changed frequently over the life of the bus
>turning on heater significantly reduces engine temp (almost back to normal)
>no external signs of head gasket leaks
>fan temp switch and temp gauge both concur that the engine is hot
>(functioning seems correct)
>rear passenger heater air does not seem very hot, even when engine is
>definitely hot
>
>Any guesses as to what's going on here?
>
>Thanks!
>
>Paul
>puusital@adobe.com
>
>
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Frank Terhaar-Yonkers, Manager
High Performance Computing and Communications Research
MCNC
PO Box 12889 3021 Cornwallis Road
Research Triangle Park, North Carolina 27709-2889
fty@mcnc.org voice (919)248-1417 FAX (919)248-1455
http://www.mcnc.org/hpcc.html
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