UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Argus25 · 7th Apr 2019, 10:58 pm

I would avoid attempts at any machining on the shaft or bush due to their relation with the plastic. If you distort the shaft you could crack the knob. Also avoid any heat.

I think you may be able to find some very thin shim brass or other material the would wrap around the shaft and take up the slop. Iv'e seen some that is thinner than alfoil. Try to get an estimate of the space required to fill and start hunting for shim material. Check out PSME (precision scale model engineering in the USA).

7th Apr 2019, 10:58 pm	#8
Argus25 No Longer a Member Join Date: Oct 2016 Location: Maroochydore, Queensland, Australia. Posts: 2,679	Re: Brass shaft loose in brass bushing. I would avoid attempts at any machining on the shaft or bush due to their relation with the plastic. If you distort the shaft you could crack the knob. Also avoid any heat. I think you may be able to find some very thin shim brass or other material the would wrap around the shaft and take up the slop. Iv'e seen some that is thinner than alfoil. Try to get an estimate of the space required to fill and start hunting for shim material. Check out PSME (precision scale model engineering in the USA).