mdb4879 wrote:I don't see a problem with doing iron blocks in particular, just wipe them down with an oily rag when you get done. My fear would be residual detergents contaminating your oil on start up. If it were me, I'd still get it hot tanked at a machine shop afterward, but this is good to make it look new again (the solvents at the shop I go to aren't very strong I guess. My E16 block was clean when I got it, but it still looked nasty)
Btw, we don't have them in our CAs, but do you think that would damage bearings? Like the jackshaft bearings in an E16 or cam bearings?
the problem is the rust that you'll get INSIDE the block... I just worked on a mild steel bracket yesterday... after some cutting and grinding, I cooled it with some water... in just a few hours, there was surface rust on it!
if I got a pristine CA block, I wouldn't want it anywhere near a dish washer!