Lovely machine. The brownish stain on the metal is residue from old oil - certainly doesn't look like the dreaded rust. Get cleaning and the machine will soon look fantastic, and then you won't be able to wait to use it! Click on my name above my avatar to get to my profile and you will find the link to our Youtube channel. There you will find my tried and tested method for machine cleaning. Be sure to post pictures once the machine is done up - I'm looking forward to seeing it.