Too many search results to dig through to find out what I need.

I bought a 20 gallon parts washer and filled it with mineral spirits/paint thinner.

Anyone see any issues with throwing entire irons in? how about rotors? Housings?

Should I be cautious about letting it sit in that stuff too long? I think everything will be fine, just making sure I don't eat the bearings up or something.

 

mineral spirits is fine. You could even hit them with oven cleaner (2 hour soak) first for better results. Everything that you mentiones can go in the washer just be sure remove all the oil seals from the rotors first