Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take Part in the new April's Giveaway for a Chance to Win the Euybike S4 Pro Max ebike worth $1299


Derailleur Spring - how to put it back on?
#1
Hi everyone,

I am very new to bicycle mechanics, trying to get an old mountain bike running better. As I was scrubbing off years of gunk from the chain and derailleur, a piece popped off. I have included pics.

https://onedrive.live.com/redir?resid=9E519F39D9FB9823!1924&authkey=!ACOzLRPoJQNHcCY&v=3&ithint=photo%2cjpg

https://onedrive.live.com/redir?resid=9E519F39D9FB9823!1925&authkey=!AG-eux3wziP2kcs&v=3&ithint=photo%2cjpg

https://onedrive.live.com/redir?resid=9E519F39D9FB9823!1926&authkey=!AKwpuGRA42PvKe0&v=3&ithint=photo%2cjpg

There is a spring, and a hole apparently for the spring on one side. On the other side, I don't know how to assemble things back properly. I didn't think to take a picture of the assembly before that part removed itself!

I have tried to find a parts diagram but my bicycle is rather old. The spring looks like the one here, but mine doesn't have a threaded male post. http://bernd.sluka.de/Fahrrad/Shiman...05-GS_1997.gif

I can see that my derailleur reads "Shimano SIS," no additional numbers or anything.

I have a feeling that a retaining clip may have popped off, based on a groove I see in the male post. But also, the spring looks like it extends so as to lock itself into place somewhere with the female bracket. Try as I might, I cannot seem to exert the force to twist the spring 180 degrees to get it housed.

Any ideas would be great, because this has really challenged me! I wonder if I am approaching it wrong.

Thank you, I hope your experience can help me!
  Reply
#2
I took the mounting post off of the rear and brought it to the local hardware. They sold "E Clips" for 25 cents each; I found one that fit nicely. Once I took the part off the bike, the assembly came together fairly naturally. I was able to use leverage and twist the derailleur into place, so the spring ends were both where they needed to be! So it looks like the bike is in business.
  Reply
#3
Glad you fixed it! thanks for the update too.
There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
Question
5,017
08-01-2020, 08:12 AM
Last Post: Jesper
 
43,263
07-12-2020, 01:24 PM
Last Post: Jesper
 
2,472
06-05-2020, 03:56 PM
Last Post: ollie.olsson
 
4,969
08-22-2019, 11:59 AM
Last Post: pinot_noir
 
7,259
06-04-2017, 04:16 PM
Last Post: Eugbug
 
6,133
06-16-2016, 08:03 PM
Last Post: TallRider67

Forum Jump:

[-]
10 Latest Posts
What are the best cost effective ways to...
Yesterday 09:17 AM
Looking for an electric bike for someone...
Yesterday 03:59 AM
Hoping someone can help me identify this...
05-01-2025 09:14 PM
RECOMMENDATION
04-30-2025 10:51 PM
Good morning form Alberta CA
04-30-2025 10:35 AM
Injury Recovery
04-30-2025 10:29 AM
Front derailer not moving
04-30-2025 08:40 AM
Looking for Recommendations: E-Trike for...
04-30-2025 04:11 AM
need e-trike advice (wife knee surgery)
04-30-2025 04:08 AM
Tour of Luzon 70 years of Filipino Cycli...
04-29-2025 01:22 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Painkiller
16 posts
no avatar 2. enkei
16 posts
no avatar 3. meamoantonio
15 posts
no avatar 4. Flowrider
15 posts
no avatar 5. GirishH
11 posts