We finally stumped him! in 5 pages of posts

Was I wrong in my conclusion?? And If so, please correct me. :classic:

NO! (ten charectors)

-Characters, Carl

-I already answered the first one....

-It's red because when the sun is setting, that is the wave length of light that the sky refracts

more specifically:

The sky is blue because the sun's rays hit the Earth's atmosphere, where the light is scattered by nitrogen and oxygen molecules in the air. The blue wavelength of this light is affected more than the red and green wavelengths, causing the surrounding air to appear blue.

At sunset, the sun's light passes farther through the atmosphere, deflecting and decreasing the blue in the air. Scattering by dust particles and pollution in the air causes the sunset to appear red.

For more info, see: http://web.ask.com/web?q=Why+is+the+sky+Blue%3F&qsrc=0&o=0

Kind of, except there is no bronze metal in the engine. The crank is made of forged steel, but I forget what the rod bearings are made of. I think they are a hardened steel, no?

take a gander at the pilot bushing.

Still waiting for an answer to Stacey's question.

Rick. :devious: :devious:

Well, I do know my metals but I do not know the answer to this for sure, so I will venture a guess...

Bronze is a softer metal, which would tell me if you the two pieces are wearing against each other, the bronze would be compressed and "squish" out, whereas the hardened steel would not. So I was going to say the hardened steel would show more signs of wear because the bronze would not stratch, but niether would the hardened steel because of the lubricating oil. So the bronze piece would show wear first.

Gotchya! Actually, the hardened steel will wear first. Why you may ask? What happens is that particals (particularly hardened steel particals and or any contaminent), produced from wearing become embedded in the surface of the softer bronze. Now what happens, as most may know, the embedded hardened steel particals now bear against hardened steel and will wear. The basic rule is that similar metal will wear faster against each other than dissimilar metals. This wear senerio is very typical of swash plates in a hydraulic pump.

Carl main bearings and rod bearings bearing surfaces are babit, but if contaminents become embedded in the babit, it will wear little grooves in the crank...as many have experienced.

In that case it's not the "bronze" that is causing the wear, it's the transferred steel.

What is babit? I tried a Google search and couldn't find anything in the first 4 pages of results.

Carl, try this one. http://www.lindsaybks.com/dgjp/djgbk/babbitt/

Chris

Thanks Chris.

I was using the spelling that was provided. No wonder I couldn't find anything useful.

In that case it's not the "bronze" that is causing the wear, it's the transferred steel.

Exactly right, Carl. That was my point of view (or saving grace) :nervous:

In that case it's not the "bronze" that is causing the wear, it's the transferred steel.

Exactly right, Carl. That was my point of view (or saving grace) :nervous:

Carl is correct, but I never asked which one was causing the wear....but which one wears first! Ah, it's all in fun and slightly educational anyway.

Carl, did I spell babbitt wrong?

What is babit? I tried a Google search and couldn't find anything in the first 4 pages of results.

..........a baby rabbit is a babbit

Vicky