I just got a sweet Yashica Mat with schmutz on the lenses. Initially I feared it was fungus, but it appears to be garden variety schmutz. Taking lens came off with the rubber tool - mirabile visu! The viewing lens won't budge. Could this perhaps be a left hand thread? (I'm haunted by thoughts of Ricoh and Kodak).
93 T'bird LX Coupe had left hand lug nuts because of the wheel design, so tires could only be rotated front-to-back.Hey guys, thanks for the update. I must have had my head up my a$$ to not think of that. A while back I did a complete CLA on a RolleiCord and it worked the same way. That is probably pretty standard on TLR's with moving lens boards.
In my defense, the most recent project was a Kodak Reflex II. So I was kinda fixated on unscrewing lenses. Also in my defense, Chrysler used left hand lug nuts on the driver side back when I was working in a service station. That's a memory that haunts you for the rest of your life.
Also in my defense, Chrysler used left hand lug nuts on the driver side back when I was working in a service station. That's a memory that haunts you for the rest of your life.
93 T'bird LX Coupe had left hand lug nuts because of the wheel design, so tires could only be rotated front-to-back.
Left-hand threads on the left side were nothing new in 1993. The idea was that the wheels on the right had right-hand threads, and the wheels on the left had left-hand threads, would be self-tightening.I recall reading (around fifty years ago) that this was an artifact of the Mopar stock racing legacy -- for quick pit stops, they used "spinner" wheels, same five holes we're used to, but for alignment only; held on by a single "knock-off" nut with three big fins on it (that the pit crew would smack with a rubber hammer to loosen and tighten). They quickly found that the wheelspin on a hard start (is there any other kind in racing?) would loosen those knockoff nuts, so they started making them left hand thread -- and then trickled that down to their street cars. They changed to standard thread around 1970, as I recall -- my parents had a '73 Duster (that my brother learned to street race in) that had standard thread on the lugs all around.
How the heck do you design a wheel so it needs left hand nuts on one side? I'm sitting here now trying to picture what sort of wheel/nut/stud interface could make right and left side wheels not interchange...
after servicing a Century Graphic i loaded a Graphic 23 with Delta 400 and went out to a park to test it out. I metered a scene, opened the camera and realized I forgot to install the lens. OOPS!
So, how'd the pictures turn out?
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