I’ve just bought an old record 4 1/2 from eBay. The lateral adjustment lever is very loose and the rivet is seized in the lever so that it rotates in its hole in the frog. I’d like to free the rivet and tighten everything up and hoped there might be some tips on how to do this. I’ve read some info on the web about tightening the rivet with a hammer but i need to free it first. Ewan.
I would suggest a few drops of 3-1 or other light machine oil on the rivet, then place it somewhere warm to let the oil soak in overnight or longer. If it still won’t break free, put another application of oil and follow up with LIGHT pressure for 30 seconds, a few times. Do not try to force it, but the light pressure will create heat inside the threads, drawing in the oil.
When it breaks free, you can use a center punch and hammer on an anvil to peen the rivet tighter. If you don’t have an anvil, put a second hammer face up in your vise and use it as an anvil.
Thanks, I’ll give that a try. I don’t like giving up, but I’m keeping an eye on eBay for a cheap replacement frog just in case.
I’ve also been looking for a replacement rivet, but can’t find anything online. I did wonder if I could fashion one out of a nail or other piece of steel. It would be nice if I could replicate the profile of the rivet head (I’ve always had a problem with attention to detail!).
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