bsa mercury

[look no hands]

I've got 2 that I'm restoring with the same issue...I'd heard of both methods.

I've just got to select the route of least risk.....however I've been tying to make up my mind for approx. 6 months.......( ;-)>

Cheers Steve

You just need to remember that once that nut has been undone that you need to make sure that it's threadlocked as if it's done up and it comes loose you'll struggle to get it back undone as the back block will just spin and not come undone, I had that problem with a Challenger.

Pete