I am just getting home and have read all the replies so far. Have you tried just replacing the bolts? New bolts with new threads with old hole and old threads may work better than the old bolts with old threads. It won't be perfect but might get you by.
Another option along the helicoil line is to bore a larger hole, tap it with whatever, get a piece of tubing of the appropriate material and thickness, tap the external surface to match your larger hole and thread and tap the inside surface with the M5x0.8 thread. Make a 'slot' in the end so you can insert and remove with a screw driver. This all depends on what the size, shape, thickness, etc., you have to work with. Good luck. Joe -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Corby Dawson Sent: Tuesday, April 13, 2010 1:04 PM To: time-nuts@febo.com Subject: [time-nuts] repairing Maser threads Hi, It does not seem Time-Nutty but I need help repairing threads in a mounting hole. I recently installed a new ion pump in an EFOS2 Hydrogen maser and two of the mounting holes (metric M5) have damaged threads. The bolts go in fine but wont tighten and if you wiggle the bolt you can pull it out. I've looked at the various locktight and permatex stuff but am unsure that they will do what I want. I'm hoping someone has experience with these and can advise me. What I hope will happen with the right product is that I apply it to the threads, screw in the bolt until it just contacts the lock washer, wait until the goop cures, and then tighten until the lock washer is compressed and the bolt is tight. Just don't know what product to try! Want to be able to disassemble without special tools or heating. Any help is appreciated! Corby Dawson ____________________________________________________________ Gains 625% from Killer Penny Stocks! Sign up for FREE alerts on the next Killer Stock. http://thirdpartyoffers.juno.com/TGL3141/4bc4b2233fb333a8aem04duc _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
