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Rant: That time a brass gear stripped on a 1970s Pentax and I nearly lost it
I was in my basement workshop last Tuesday trying to fix a Spotmatic that came in with a jammed shutter, and I found a brass gear in the winding mechanism that had completely stripped its teeth. After three hours of hunting through my parts bins I managed to swap in a nylon replacement from a donor body, but now the tension feels a bit off and I'm worried it'll slip under heavy use. Has anyone else tried swapping gears on these old screw-mount cameras, or should I just tell the customer it's a lost cause?
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jordan_henderson133mo ago
Buddy of mine did that exact swap. Lasted about a week before it gave out.
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alice_allen53mo ago
Heard a guy had one catch fire in his driveway @jordan_henderson13. Not worth the gamble.
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karen_carter3mo ago
Ugh, that brass gear issue is a nightmare. I've had good luck using a nylon gear but only after I filed the replacement shaft hole to a perfect snug fit so it wouldn't wobble under load.
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