Challenge Chain Number Three
(NOTE ***
posted out of sequence due to re-building this thread)
This prospect was mailed to me by a newer A.S. member due to the earlier thread. The older style links might look cool on someone’s restoration saw from the right era. It had surface rust on several of the links, but all of the rivets rotate freely, which is a good sign.
Purchased a gallon of EvapoRust and soaked the chain in it for 2 hours. Very impressed! All of the surface rust is gone, except for a few spots. Because these spots are so localized, and not on the chrome portions of the cutters, I will just use a few dabs of Naval Jelly on them.
The surface of the metal and the chrome look fine. The rivets look good. The chain has a dull grey appearance, instead of looking shiny, but that is cosmetic, and people say that it will wear off. Wire brushing removes it. If someone wants a shiny chain they can polish it. Maybe if I checked the chain earlier there would be less of this dark coating?
Cleaned up, I can tell that this is a 3/8 pitch, .050 gauge chain, with bumper tie straps that look like a 57 Chevy. Don’t know the brand. Marked ‘L’ and ‘R’ on the left and right tie straps. Marked ‘370’ on the drive links. EDIT: I think this is a Carlton / McCulloch chain.
Little wear on the cutters, but lots of peening on the drive links and the bottoms of the tie straps. Probably run on a worn sprocket; possibly a worn bar. Lots of good diagnostic sketches for chains, bars, and sprockets towards the rear of the Oregon Maintenance and Safety Manual (
http://www.oregonproducts.com/maintenance/manual.htm ). Will clean up the drive links with a ScotchBrite wheel on a bench motor, then the chain is ready for normal sharpening and a lube job.
WINNER? - Philbert!
LESSONS? - EvapoRust very promising on surface rust.