rocker arm lineup

Looking at the Ford shop manual, the assembly needs no other parts, as in spacers. Only the diesel uses spacers.

When a support post broke and I disassembled, and had the rocker arm faces ground at a machine shop to smooth up so I don't have a history mark.

I did check each rocker arm yesterday and they are identical as well as the thickness of the mounting posts. No wear evident.

I am beginning to believe ford was that sloppy in where these hit the value stems. However, the thought of a previous owner messing up what’s there is my concern.

In each case, if I shimmed it would improve the strike point. Just don't know if I'm needlessly chasing perfection, which is a problem I suffer from.

If I can get some washers that are used on the ends of the rocker arm shaft, I guess I wouldn't hurt the situation by shimming.

Of course another week or two of chasing parts. Some days a new John Deere looks pretty good.

Thanks
Harold

Go get em.

Mark

To me, even an OLD John Deere looks oretty good!

How about a previous owner getting the valve train messed up. Maybe a close examination would answer that question. If at least 2 are out of alignment question may be answered.

Remove the rocker assy and turn it over and examine where the rocker has been hitting before. Maybe there is a clue there.

Thinking aloud, the face of the rocker is wider than the rocker. Maybe they are made that way to tolerate some misalignment?

Mark

As sloppy as it seems, I have noticed that on various engines, and have worked on engines with wear marks on the rocker arms way off center, near the edge of the "pad" that depresses the valve.

The only thing I can think of, if you are using matching parts, if the alignment is worse than it should be, has someone done a poor job of replacing the valve guides, so the tops of the valve stems are a little "off" of their original position?