Short version: had to hone some minor ring wear out of an otherwise cherry drum (from a low mile trans) and it measures about .001-.0015 out of round with a bore gauge. Didn't measure the actual dimension (though I can) but it wasn't a lot of honing. I'm sure it will physically function fine with iron rings but the OCD in me is wondering if there's a better option like a scarf cut or solid Teflon ring from another application. This will be dual fed.
I found another drum that I thought was better to the naked eye but when I measured it for out of round, it was a little worse and just using a dial bore gauge from one drum to another it turns out to be larger and only then do I notice the marks from where it had been honed out before. At least it was free lol.
I found another drum that I thought was better to the naked eye but when I measured it for out of round, it was a little worse and just using a dial bore gauge from one drum to another it turns out to be larger and only then do I notice the marks from where it had been honed out before. At least it was free lol.