The threaded end of the crankshaft on the Alternator side of my Atlas was damaged by the previous owner. He threaded on the incorrect nut and seriously damaged the threads. I need to run a thread restorer or die on the crank end and do not know the correct size. I cannot tell if it is BSC or UNF? The spanner size is 7/16. Any help is greatly appreciated as I cannot finish my rebuild until this is repaired. Thanks again. Ed Blount

Must be my deodorant. No replies. Quit waiting a a reply and took my crank to a professional machine shop and had them cut new threads on the shaft.

It sometimes takes a few days to get an answer. Most people on the forum are garage mechanics sharing knowledge and only check in when they are in their shop. There is a link to DynoDav's "Atlantic Green" at the top of the page. He posts here a lot and will answer your questions.

NortonGuy Board Founder

5/8x20 coarse series cycle... just like the transmission shaft. It is kind of tough for me these days since my new building is such a mess, and all my technical resources are still unorganized. I hope to be in limited operation by thanksgiving. cheers new addy and DSL oh boy ...no more dial up. [email protected]