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G2 Gearbox Cover (Twin) - Repair Scheme


Well Known and Active Forum Website User
VOC Member
Hi All,

I have a G2 Gearbox Cover ("Manhole Cover") with stripped threads where the steel ring (MO32 - G45) screws in to locate the bearing properly and support the G24 seal. Being one who much prefers to reclaim an original part rather than buy a new one, my original thought was to build-up the threaded area with alloy weld, then machine back and cut the thread as appropriate. However, I then started to worry about distortion so decided I'd be better off machining-out the remains of the thread - and some - then making an internally-threaded alloy ring to press-in so bringing it all back to standard.

Before I start, does anyone have any thoughts on this, tips, or other ideas?

Peter B
Bristol, UK.

Hmmm, must manufacture and replace the damaged gear in the headstock of the lathe before I do anything else... life for the retired is just SO busy...


Forum Website User
Non-VOC Member
I had the same problem last week, and I cut a new bigger thread in the cover, and made also a bigger lockring. DSC00457.jpgIMG_0649.jpgIMG_0650.jpgIMG_0653.jpg


Well Known and Active Forum Website User
VOC Member
G2 Repair


A simple and effective solution! Thanks for sharing and taking photos too.
And some quality work there too....

Regards, Peter

Robert Watson

Well Known and Active Forum Website User
VOC Member
Peter. I have had one on the shelf for about 10 years awaiting me to tackle it, now I think it might come to the "current jobs" pile, If " life for the retired wasn't just SO busy... "
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