Picked up a used cam this week. Looks like a Longstroke and matches an example I already have stamped 67 695. But this recent purchase has no part number stamp, and more curious, is drilled almost all the way through on the long axis, similar to the A50/65 unit design. The gallery ends about 40 mm from the face of the thread, serving no purpose apart from lightness? But enables the possibility of modification to feed lubricant directly to the cam lobes, as more modern automotive practice.
Could be an aftermarket part, maybe one for Julian's archive. Still, it fits a pair of crankcases, turns smoothly and the lobes are in the right place. So if it looks like a Duck.....chances are it will do the job.
My researches show that two camshaft profiles were available for the Longstroke engine.
Swarfy
