- Joined
- Jul 25, 2009
- Messages
- 62
What are the experiences of the forum members with respect to various cleaning agents with which to restore the appearance of the head. I've heard of using oven cleaner. I'd prefer not to sandblast the surface although I did do that for the combustion chambers (right or wrong). I tried Simple Green and although it worked well as a degreaser it did not restore the surface to its aluminum appearance but still appears really gray. I've got the head off during a rebuild and am open to suggestion .
An unrelated question which I will place here is that I've received two NOS std pistons for the 850 engine but have found that the top ring on one appears to have a chrome ring while the other piston has an iron ring. Also the oil control rings have different types. One appears to be a metal stamping and the other a plastic separator between the two thin rings. My old pistons had the plastic type from 1973. I'm using these anyway as I just want to have a runner and am not looking at a performance machine.
Once again.......thanks for any input on these questions. Someday I may have more answers than questions but not today!
An unrelated question which I will place here is that I've received two NOS std pistons for the 850 engine but have found that the top ring on one appears to have a chrome ring while the other piston has an iron ring. Also the oil control rings have different types. One appears to be a metal stamping and the other a plastic separator between the two thin rings. My old pistons had the plastic type from 1973. I'm using these anyway as I just want to have a runner and am not looking at a performance machine.
Once again.......thanks for any input on these questions. Someday I may have more answers than questions but not today!