Cam retainer plate and spacer easy/quick visual IDs:
1. The first design plate has a notch in the inner bore. The hole is not round. The spacer IS round.
2. The second design plate inner bore IS round. The spacer has a flat spot on the OD.
Quote:
the flat is ez enuf to do by hand if u don't have a late ring..
The two spacers are
NOT interchangeable. Filing a second design flat on the first design spacer and putting it back into the first design plate would result in a larger pressure leak, making the low pressure problem worse, not better.
DON'T DO IT! The second design spacer is, IIRC, .045" larger in OD, so won't fit into the first design plate. If a first design spacer had a flat filed on it and were installed in a second design plate, it would be too small in OD and a terminal pressure leak would result.
DON'T DO IT! When my CNC machinist was refusing to make more new second design cam retainer plate/spacer sets for me, I worked over the first design plate, manually re-machined the center hole larger and made more of the second design spacers. This gives about 90% of the benefit of the second design plate. I was finally able to talk the CNC guy into a second run of all-new parts and am offering those for sale. If he refuses to make a another run of new parts, I still have a few of these hybrid sets on hand and the tooling to make more. Thus, I am asking for an exchange when I sell the new parts.
thnx, jack vines
Studebaker-Packard V8 Limited
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