Agreed. And technically, it would be a step motor. Also, you could do  
away with the thermistor and just hook up to the oil temp sender. So  
the controller might be nothing more complicated than an oil  
temperature gauge that switches the step motor. That's the ugly way to  
do it. Maybe there's a cleaner way.

Mark

On Feb 21, 2011, at 5:57 PM, Tom Hargrave wrote:

> You�d need more than just a thermistor and a servo � you need some  
> sort of controller in the middle that would monitor temperature and  
> move the servo.
>
> Tom
>
> From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On  
> Behalf Of Mark L. Hineline
> Sent: Monday, February 21, 2011 6:49 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Substitute for aircooled thermostat
>
> Seems like a thermistor and a servo could substitute for the NLA
> thermostat for aircooled engines. The servo could be mounted up on the
> flaps, in the cool part of the engine compartment, with only the
> thermistor down where it's hot.
>
> It shouldn't take too much thought to make sure that if it fails, it
> fails in the flaps open position. Or buzzes a warning!
>
> So, tell me why this wouldn't work.
>
> Mark
>
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>