I recently purchased an '87 Sylvan with a Mercruiser 3.0. The motor runs very well but there is a little rust here and there on the block. The occassional bolt, housing, and a small amount on one spark plug. I'm in MN so no saltwater. I'm planning on wirebrushing and repainting with Mercruiser black, but want to get a better idea of whether or not it's normal to find trace amounts of rust and whether anyone has any tricks to help deal with it.
Thanks!
Thanks!