Date: Fri, 5 Sep 2008 11:20:33 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: 82 westy, custom modifying circut to run cooler (?)
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it's true, on a gasoline fuel injected vanagon ................you must be
talking about an air-cooled 82 vanagon I would imagine ........
if you add resistance to the wire connected to the temp sensor for the
ECU........
that will trick into running richer.
and if it runs richer, it might run cooler.
BUT........a big but.............warmer is better. Unless you are pushing
huge long grades with big loads on very high temp days,, and your oil
temperature is at dangerous levels............you're fine.
And if that was the case, too high oil temps , then perhaps an auxiliary oil
cooler.
Does very high cylinder head temps hurt or shorten the life of air-cooled
Type IV engines in Vanagons ?
I suppose so. They're plenty weak as it is...........so on that score, sure
.........you might try adding a simple resistor in series, just one ........
to the temp sensor for the ecu, located on the left cylinder head.
And get some way to measure temps so you can tell if it's doing any good or
not.
A simple infra red temp gun aimed at a head.............after a standard
known run ........one you do all the time............sure, try that.
But I think you are chasing after a problem that doesn't really
exist..........or one not truly addressed with some 'patch' add-on.
The bigger issue is just the limitations of what you have to work with
.......an air-cooled VW engine. They are what they are, and some things can
be done to help them some, yes. Good luck !~
Scott
----- Original Message -----
From: "B.J.R." <beer_eighty@YAHOO.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, September 04, 2008 4:52 PM
Subject: 82 westy, custom modifying circut to run cooler (?)
>I came across this while searching online, the guy had ssold a van with
> "New temp sensor and custom modifying circuit to keep van running
>> cooler"
> I tracked him down and this was his response
> ".I can give you the basics, but don't remember much beyond that.
> Basically the temp sensor is a resistor that has more and more
> resistance the hotter it gets.
> So to make the engine run cooler, I put resistance in line with the
> temp sensor to make the engine think it was hotter than it was, and
> thus try to run cooler (via making the mixture richer, if I remember
> right)..
> I used Radio shack resistors (not sure if radio shack sells resistors
> anymore), so I had to attach a longer wires so the resistors would be
> on the inside of the van (otherwise they'd probably overheat. I
> connected two series of two parallel circuits, but can't remember
> what the end resistance was that I added.
>
> I did two in series and two in parallel because I didn't trust the
> quality of the resistors... Needed two in series in case one failed
> as a closed circuit, and two in parallel in case one failed open.."
>
> Any one heard of this??
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