http://www.mcmaster.com/nav/enter.asp?pagenum=518

As low as $38 and as high as the sky. Pick one.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Greg Potts
Sent: Sunday, March 26, 2006 12:39 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Cheap but reliable IR gun?

Hi Volks,

Can anyone recommend a decent IR gun that won't break the bank? Is
the one sold at Radio Shack/The Source any good?

I have an occasional need for one at work, and would like to have the
opportunity to second-guess (verify) the CHT gauge on my aircooled
engines.  In order to expense this item through my employer I need
for  it to be accurate in the 30-50C range, and for VW work I need
sensitivity from 120C - 300C

Happy trails,

Greg Potts
Toronto, Ontario, Canada

1973/74/79 Westfakia Conversion **Bob the Tomato**  LY3H
1977 Sunroof Automatic L63H/L90D
http://www.pottsfamily.ca/westfakia
http://www.busesofthecorn.com

On 26-Mar-06, at 9:07 AM, Dennis Haynes wrote:

> The gauge actually has a provision to adjust the needle position and
> sometimes new ones do need adjustment. T-stats can also be defective
> even new. Get an IR gun and check the coolant temp at the t-stat
> housing. If it is 185F and 200F things are good. Check at what temp
> the
> fan turns on. Remember that the fan switch is at the outlet of the
> radiator. By the time the fan turns on, the coolant leaving the engine
> will be hotter as the return will be at ~180F. This is normal.
>
> Dennis