Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 46 Post(s)
Tagged: 1 Thread(s)
Quoted: 1774 Post(s)
Given the vintage, I suspect it doesn't have index shifting. Back then the levers used a friction clutch to resist the derailleur return springs.
If your problem is that you can shift when pulling the lever, and it returns when you let go, you need to tighten the clutch screw in the middle of the lever, and/or lube and re-assemble the lever properly so that the clutch holds.
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions”
- Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance