My heater knob broke into 1 large and 3 small pieces around the base the base. Sue Miller advised replacements are not available. So is there a suitable repair, replacement knob or knob/cable replacement? Has anyone had success in producing a replacment? I’ve ordered an ALUMLITE Super Casting kit to give it a go and try to make the base of the knob. Has anyone had success using their kit? I saw this demonstrated on the Unibrain Elan web page.
Vegantune fitted an alternative cable when they last did some refurb on my car, but it was a stranded cable. After a while it woul;d no longer PUSH the heater valve shut.
I thought of fitting a pull back spring, but in the end as I had insisted on them returning to me any originals of bits they changed, I re-fitted the original single wire push-pull cable after replacing the outer bowden cable with the outer of a bicycle brake cable.
Any small machine shop or model enthusiast should be able to cut you a new knob from aluminium rod. I seem to recall it has a D shaped hole to fit the shaft, which might be a bit tricky.
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I like the idea of the moulding kit you found though.
Long ago I made a new gear-stick knob from cast perspex, with elements of my history embedded in it, but alas the perspex was not strong enough for that task and it sheared across.