My rebuilt engine with 700 miles on it is useing oil. Machine shop was supposed to replace all the bad valve guides but not all of them. I was also running a heavy oil 20w 50 . Could this have been a problem with seating the rings ? I was light on it for the first 500 miles for the most part but now I am worried .
My guess is there were more valve guides to be replaced. I am going to try runing a lighter oil to see if its that and the rings have not seated yet. Any other ideas ?
My guess is there were more valve guides to be replaced. I am going to try runing a lighter oil to see if its that and the rings have not seated yet. Any other ideas ?