Panic,
So I did it properly, right? The way that I did made sense to me that the exh valve would definitely be closed as the intake valve begins to close due to the next up stroke is compression which means the exh valve ain't movin'.

Hank and FF,
I'll try this method as it makes just as much sense as the one described above with less time and complication. I just never thought of it in this manner. If I'm thinking about this correctly, then it also means that there is no need to pull the side covers, correct?

If you can appreciate, I've spent years adjusting valves on inline 6 diesels that have no siamese ports (728 CI.) The first time I adjusted the valves on my 250 twice I looked at the wrong valve due to siamese port. I guess that I'm saying that I attempt to follow instructions to the tee.
Thanks to all - hopefully all of your explanations are helpful to the guy with the original post.


If at first you don't succeed,
then read the directions and try again.