An IR scope is not a laser temp indicator. A scope gives you a picture of the object being monitored and shows the temp gradients of the part, where it's the coldest and where it's the hottest and what the temp's. are.
KRRon ----- Original Message ----- From: "James Jernigan" <jim_...@sbcglobal.net> To: "KRnet" <kr...@mylist.net> Sent: Wednesday, August 24, 2005 8:28 AM Subject: RE: KR> engine CHT temps > These laser thermometers, which I think is what you are referring to, are > getting cheaper and cheaper. And better. I just bought one , a Raytek > MT6, on Ebay for the "buy it now" price of 56.00. This thing is great! > It will measure up to 900 deg F and is useful not only for head temps, but > for identifying dead cylinders in a flash, measuring the efficiency of > your home A/C system, determining if your car thermostat is opening- the > possibilities are endless! So far I have managed to keep it secret from > my thirteen year old son, who no doubt would measure the temp of every > square inch of everything in his world, but I know he will get hip to it > sooner or later. Then I will be able to issue a report for how resilient > it is. > > Cheers, Jim Jernigan > > Brian Kraut <brian.kr...@engalt.com> wrote: > I would love to give it a shot on my plane to make sure that I have the > CHT > probe on the hottest cylinder if I could talk you into bringing it again. > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > -----Original Message----- > From: krnet-bounces+brian.kraut=engalt....@mylist.net > [mailto:krnet-bounces+brian.kraut=engalt....@mylist.net]On Behalf Of > Mark Jones > Sent: Tuesday, August 23, 2005 8:20 PM > To: Ron Eason; KRnet > Subject: Re: KR> engine CHT temps > > > Last year, I brought an IR temp sensor to the gathering for anyone who > wished to test their head temps. Jim Faughn was the only one interested in > doing it. I still have the tester and have found it very useful when test > running my engine to locate the hot areas in the cylinder heads. > > Mark Jones (N886MJ) > Wales, WI USA > E-mail me at flyk...@wi.rr.com > Visit my KR-2S CorvAIRCRAFT web site at > http://mywebpage.netscape.com/n886mj > > > ----- Original Message ----- > From: "Ron Eason" > To: "KRnet" > Sent: Tuesday, August 23, 2005 4:51 PM > Subject: Re: KR> engine CHT temps > > >> If anyone out there has access to a IR Scope it could be used to find the >> temperature quadrants on the heads of engines types[ VW Corv. Cont. and >> etc.]. The info would indicate where to place sensors. >> I have worked with these scopes at GM, but the scope is GM's not mine. >> >> KRRon >> >> ----- Original Message ----- >> From: "Oscar Zuniga" >> To: >> Sent: Tuesday, August 23, 2005 4:40 PM >> Subject: KR> engine CHT temps >> >> >> > In response to the exchange on location of the temp probe for CHT, I'll >> > repost this from Dec. of 2003 for your consideration: >> > ================== >> > Howdy, Netters- >> > >> > I got my "Beetle Flyer" (from Great Plains Aircraft Supply) over the >> > weekend >> > and took notice of a tech tip on locating your CHT sensor on the VW > engine >> > ( down the page, at http://www.greatplainsas.com/bf20032.html ). > Standard >> > practice is to install it under a spark plug, but Steve Bennett points > out >> > that your CHT temps will read high if you do this... by as much as >> > 150F. >> > He >> > recommends installing it under a head stud (location is given in the > text >> > in >> > the Flyer, but not as clear as it could be). Long and short of it is > that >> > if you're running a VW and have your CHT sensor under a spark plug, you >> > may >> > not be getting readings that reflect what you're really interested in. >> > >> > If Bob Hoover is still monitoring this list, maybe he would care to > chime >> > in? If Steve is monitoring this list, maybe he would care to elaborate >> > more >> > clearly on the preferred location? The picture in the Flyer identifies > a >> > boss that is used for fuel injection temp. probe, but doesn't say this > is >> > the recommended spot (and doesn't seem to be a good spot anyway). The >> > idea >> > is to respect the metallurgy of the head castings by not allowing the > CHT >> > to >> > exceed recommended temperature... bad and irreversible damage can >> > result >> > if >> > the metal gets too hot. >> > >> > Oh, and somewhat timely and related to Mark Jones and Mark Langford's > two >> > different approaches to cooling plenum on the Corvair, the Beetle Flyer >> > also >> > addresses cooling plenum design for the VW on the above-referenced >> > webpage. >> > >> > Oscar Zuniga >> > San Antonio, TX >> > mailto: taildr...@hotmail.com >> > website at http://www.flysquirrel.net >> > >> > >> > >> > _______________________________________ >> > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >> > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >> > please see other KRnet info at http://www.krnet.org/info.html >> > >> > >> >> >> >> _______________________________________ >> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp >> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net >> please see other KRnet info at http://www.krnet.org/info.html >> > > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > >
