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 |
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