Current Projects chat and miscellany

You are reading a single comment by @Ste_S and its replies. Click here to read the full conversation.

•

Ste_S

Trying to get the rear mech set up properly on the Viner, not set up downtube shifters for a while.
Can't get the chain to stay in the largest four sprockets on a six speed block, cable tension seems to slacken off and the chain drops into the two smallest sprockets.
Symptom of too much cable tension ? Cable is fairly slack in the smallest sprocket though. Anything else that could be causing it ?

To answer my own question if anyone is interested, it appears as though it's the friction shifter that's at fault - Not having enough friction to keep the cable tensioned.
Hopefully it's just the bolt that needs tightening. Otherwise it's take it apart and clean, or worst case there's a part that's missing, worn or incorrectly installed. Time to try to find some exploded Campag friction shifter diagrams

•

Scilly.Suffolk in reply to @Ste_S

The spring in the rear derailleur pulls it towards the smaller sprockets, so what you're describing is a symptom of not enough tension, most likely (as you say) from the shifter slipping.

Assuming it's complete, just do it up tighter.
•

gbj_tester in reply to @Ste_S

it's the friction shifter that's at fault

They are always at fault. Get indexed, or at the very least ratchets.

About

Avatar for Ste_S @Ste_S started