IF you keep using the shutter in its current state it will deteriorate to a pile of some usable parts.
Example #1- blade opening spring broke. I was able to make one from brass that worked but was not as strong as the original which is copper.
Example #2- arrived with the pin in the timing gear next to the cable release socket broken off. It was run until it stopped. I made and installed a new pin.
both shutters came back with speeds at the edge of tolerance for some speeds and within tolerance on the other speeds except for 1/200 and 1/400 speeds.
Back to doing a CLA on a #2 Graphex.
Wollensak Raptars were re badged Optar for Graflex Corp. cameras.