removing paint from guide bar or tip

[MyUsername]

Maybe some of you geniuses can make more sense of it than me. But red bulls temp gun probably isn't correct unless is has an adjustable emmissivity setting(and it's set properly). More reading

http://www.fluke.com/fluke/uses/com...reality/mr-full-infrared-contact thermometers

 

[Magnumitis]

I have many electric brushless RC cars and trucks. I use IR temp guns to check motor can temps to set up proper gearing. I remember a few years ago reading, (more than once) on RC forums, that different finishes on metal motors can affect temperature readings. Different colors/painted any shiny surfaces can give different temp results. I think IR Guns can't always measure temps properly on shiny surfaces. I tried to search for some of the discussions that I read, but couldn't find them. But I did find this...
http://www.raytek.com/Raytek/en-r0/IREducation/Emissivity.htm

This write up seems to say that you'll get the most accurate temperature reading of a shiny surface if you paint it black.

From what I gathered, polished steel would give a much lower reading.

 

[hseII]

From what I gathered, polished steel would give a much lower reading.

Erratic is what I would call it.

Something about the reflectivity causes more issues.


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[Keith Gandy]

 

[Keith Gandy]

FWIW I have never owned a vehicle that didn't have a painted radiator. Evaporators and radiators serve reverse functions. The former collects heat from the outside air and transfers it to the circulating refrigerant; the later collects heat from the circulating coolant and transfers it to the outside air.

I don't know if a chainsaw bar acts as a cooling fin or a heat source in normal applications as I don't know the temperatures of each component, but the principles T1 raise are correct - heat moves to the cool. Gloss surface reflect more and dull surfaces absorb more. Interesting test would be operating chain temperatures on a clear coat bar, a flat black bar and a bare bar. Same test for temperatures at bar mount.

Ron

R u saying the tubing and fins on your vehicle radiator have paint on them?

 

[Magnumitis]

Maybe some of you geniuses can make more sense of it than me. But red bulls temp gun probably isn't correct unless is has an adjustable emmissivity setting(and it's set properly). More reading

http://www.fluke.com/fluke/uses/com...reality/mr-full-infrared-contact thermometers

Yep, experiment is likely flawed. You have to know the accuracy and parameters of your lab equipment.

 

[Keith Gandy]

Yep, experiment is likely flawed. You have to know the accuracy and parameters of your lab equipment.

I think I remember Redbull saying he has some sorta highend temp gun? I bet he knows how to calibrate it

 

[WOODS]

R u saying the tubing and fins on your vehicle radiator have paint on them?

Yes. Ron

 

[Canadian farm boy]

Copper rads are usually painted black. Aluminum rads are usually bare

 

[bigbadbob]

I just got a double sealed quick connect muffler bearing for my ported Cummins,,, gonna scrape the finish off then have it ceramic coated for better cooling,,,,Im betting on 25 HP gain!!
BBB

 

[WOODS]

KG, IDK but it may be more of a corrosion measure for copper and brass. Some aluminum radiator tubes aren't painted. Ron

 

[Magnumitis]

Erratic is what I would call it.

Something about the reflectivity causes more issues.


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Nice sig

 

[Keith Gandy]

KG, IDK but it may be more of a corrosion measure for copper and brass. Some aluminum radiator tubes aren't painted. Ron

I wonder if its some sorta special paint? For emitting heat?

 

[Magnumitis]

I think I remember Redbull saying he has some sorta highend temp gun? I bet he knows how to calibrate it?

I bet a basic model in the hands of an experienced operator would be sufficient.

 

[hseII]

Nice sig

Huh?

I sold all of them I've owned?


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[Magnumitis]

Huh?

I sold all of them I've owned?


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What a shame

 

[Keith Gandy]

I bet a basic model in the hands of an experienced operator would be sufficient.

Shoot if Id know! Lol! I have a handheld Fluke and I point and shoot and presto!! Instant temperatures!!

 

[WOODS]

I wonder if its some sorta special paint? For emitting heat?

Once again I don't know. May also be for aesthetics. I worked for awhile in the early 70s with a distributor of Moline radiators. IIRC they were all a glossy black. Though it doesn't take long for grime to dull them out. Heater cores were bare. Ron

 

[KenJax Tree]

I found a solution

 

[hseII]

What a shame

That was right before the Tragic Boating Accident.

All my accessories were lost too.

I now have a Glock brand rape whistle, but never get a chance to practice using it.

I understand once I have honed my skills, the Flying Circle J is the place to be.


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