Mark and Kim Smith wrote:

Doug Miller wrote:

snip

The suspended solids in used engine oil are, for the most part, fine
particles of metal. The junk that collects on the bar during use is
wood dust. Surely you don't imagine that the two produce the same
degree of wear on the chain and bar.




Hey Doug,

Check this out as for the hardness of wood. Check out the third
picture down!! http://www.xmission.com/~tmathews/b29/e.html

Interesting site too..

Reminded me of the marvelous PBS Nova program about the attempt to
recover the B-29 "Kee Bird" from Greenland.

IIRC they did something creative with the wheels on that one too. Having
no source of compressed air they filled the tires with propane they had
on hand for cooking.

If you never heard about this 1994-95 rescue attempt and its unhappy
ending, here's a link:

http://b-29s-over-korea.com/shortstories/b29-frozen.htm

Jeff

--
Jeffry Wisnia

(W1BSV + Brass Rat '57 EE)

"Truth exists; only falsehood has to be invented."