UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - I wonder how long this has been in the loft?

Techman · 11th Dec 2018, 5:43 pm

I agree that if it's very bad, then careful use of a blowlamp is the only way. I had to resort to the gas blowlamp on mine - it was the only way, and that's why the whole assembly had to be removed from the deck first. Be VERY careful with the heat and just 'waft' the flame around it as the main part is made from 'monkey metal', and we all know what that's like!

Take careful note of how the idler wheel height is set, and that the grub screw should be tight and the spindle itself should be free to turn in its bearing in the casting - this will also probably be solid and needing heat to free it off.

On the other hand, if all parts of the assembly are moving slightly, then perseverance with solvent and oil as advised by others may work - but you'll still have to get some lubrication onto that internal 'roller' and stepped casting to get smooth speed changes.

11th Dec 2018, 5:43 pm	#15
Techman Dekatron Join Date: Nov 2009 Location: Lincolnshire, UK. Posts: 5,000	Re: I wonder how long this has been in the loft? I agree that if it's very bad, then careful use of a blowlamp is the only way. I had to resort to the gas blowlamp on mine - it was the only way, and that's why the whole assembly had to be removed from the deck first. Be VERY careful with the heat and just 'waft' the flame around it as the main part is made from 'monkey metal', and we all know what that's like! Take careful note of how the idler wheel height is set, and that the grub screw should be tight and the spindle itself should be free to turn in its bearing in the casting - this will also probably be solid and needing heat to free it off. On the other hand, if all parts of the assembly are moving slightly, then perseverance with solvent and oil as advised by others may work - but you'll still have to get some lubrication onto that internal 'roller' and stepped casting to get smooth speed changes.