If you have a dial (or digital, better) caliper, you can do a quick check.
First, remove the graflock back focus panel and turn it over to view the inside. At the four corners are nice flat places to measure from that high spot down to the Fresnel. It should be .140 or very close to that. But you must be very careful to place the end of the caliper evenly on the flat high corner spot and hold it at 90 degrees! Measure several times at each corner until you get consistent results.
If you want/need the manuals, they're available here:
http://www.southbristolviews.com/pic...icmanuals.html
Calibrating the top rangefinder is not much fun but not too difficult either. However, since you say there are no numbers on your cam, I would suggest borrowing or buying another cam before adjusting to that one. You really don't want your rangefinder adjusted to some home-made cam and have it out of adjustment to factory cams.
Another thought... How did you place your front standard? If you have stops, they may be in the wrong place? If you don't have stops, that's another whole problem...
Good luck with it!
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