degreeing a slant camshaft with no cam card

1930 said

I thought I had found the magical number, both measuring instruments lined up perfectly. I was and am still confused however in that both closing points were a tad off, in other words @.006 on the dial the wheel was a pretty good amount off from the FSM specified closing figure.

So any suggestions on a different approach that maybe this slant.org member may have wanted me to take?

I would still like to find that magical number if I have not already done so.

Thanks

Click to expand...

So far, I'm finding that the readings above .200" lift and below .050" lift have more variation with the centerline than the ones from .050" - .200" lift. Those are pretty close to +/- 1° when I calculated the lobe center.

Both cams seem to have the same profile for intake and exhaust valves.

I feel that the variation on the top and bottom of the lift are because the valve is slowing down and there is more "room for error" in catching the marks as they stay in the same place longer, and can have a few degrees where it reads the same (if you follow what I mean here).

You did a good job taking the data. It looks good so far, I just have to filter it out a little more.