I have a 1975 year 2030 diesel with a fairly new engine in it. It puts out a tremendous amount of white smoke when cranking and running, until it warms up, then it's fine. I've read a bunch on here and I think it is a retarded timing issue. It has a stanadyne pump model JDB435MB2805. I have the static timing marks in the window lined up. I was going to try to advance it a bit. Can anyone tell me which way to turn it to advance? I think it would clockwise while sitting on the tractor, is that correct? Also, can anyone tell me where to get a "timing window" so I can check the advance at higher RPM. They seem to be scarce, or I'm looking for the wrong number. Thanks