OK, TRYING to fit my Series 1 roll bar to the cab. Of all things, i'm stuck on the pin that goes through the centre of the engine mount to the arm on the gearbox. I've taken the 19mm nut off the bottom, tried giving a tap with a hammer.....not having any of it.

by any chance you don't have to twist it or anything do you?

If anyones got any good ideas that would be