Stuck 105 derailleur
-
- Posts: 646
- Joined: Sat Mar 13, 2010 7:12 pm
- Location: Blackhead NSW
Stuck 105 derailleur
Postby brokenbus » Mon Feb 19, 2018 10:50 pm
My 5700series 105 front derailleur will not change down to the small ring even though it has cable slack. It will change if you push it. It happened a month ago so I lubes all the pivot points with silicon spray and worked it back and forward until it was working again. I haven't ridden the bike since until today and back to the same problem. I have got it going again by lubing and working the mechanism but was wondering is this a common thing and do I need a new derailleur if lubing the pivots is only a temporary measure?
Thanks
Nicko
Thanks
Nicko
- OnTrackZeD
- Posts: 353
- Joined: Sat Aug 03, 2013 12:35 pm
Re: Stuck 105 derailleur
Postby OnTrackZeD » Tue Feb 20, 2018 9:21 am
Try degreasing it before you relube it.
- ValleyForge
- Posts: 1831
- Joined: Tue Jan 27, 2009 5:37 pm
- Location: Brisbane
Re: Stuck 105 derailleur
Postby ValleyForge » Tue Feb 20, 2018 9:30 am
Can I ask why silicone spray?brokenbus wrote:I lubes all the pivot points with silicon spray and worked it back and forward until it was working again.
\
Ha ha ha! Cookies on dowels.
- Duck!
- Expert
- Posts: 9877
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Stuck 105 derailleur
Postby Duck! » Tue Feb 20, 2018 1:14 pm
That won't do anything. It needs a corrosion-breaker.OnTrackZeD wrote:Try degreasing it before you relube it.
I had a thought, but it got run over as it crossed my mind.
-
- Posts: 646
- Joined: Sat Mar 13, 2010 7:12 pm
- Location: Blackhead NSW
Re: Stuck 105 derailleur
Postby brokenbus » Tue Feb 20, 2018 1:32 pm
I have a can of it with a fine nozzle so I can accurately spray it where I want. I works great as a lube on door locks.ValleyForge wrote:Can I ask why silicone spray?brokenbus wrote:I lubes all the pivot points with silicon spray and worked it back and forward until it was working again.
\
-
- Posts: 646
- Joined: Sat Mar 13, 2010 7:12 pm
- Location: Blackhead NSW
Re: Stuck 105 derailleur
Postby brokenbus » Tue Feb 20, 2018 1:35 pm
Hi Duck can you be more specific with what a corrosion breaker is?Duck! wrote:That won't do anything. It needs a corrosion-breaker.OnTrackZeD wrote:Try degreasing it before you relube it.
I put some innox on it last night which is a better form of WD 40.
I also have some liquid lithium grease spray- worth a shot of this.
- ValleyForge
- Posts: 1831
- Joined: Tue Jan 27, 2009 5:37 pm
- Location: Brisbane
Re: Stuck 105 derailleur
Postby ValleyForge » Tue Feb 20, 2018 1:37 pm
PTFE perhaps on door locks. Silicone spray for nylon garage door runners.
Once the corrosion is cleaned off per Duck!'s post, some standard gear lube might be in order.
Hope it is easier to take apart than my Campy R/SR FDs. E-washers flicking all over the garage.
Once the corrosion is cleaned off per Duck!'s post, some standard gear lube might be in order.
Hope it is easier to take apart than my Campy R/SR FDs. E-washers flicking all over the garage.
Ha ha ha! Cookies on dowels.
-
- Posts: 377
- Joined: Sun Oct 30, 2016 5:43 pm
-
- Posts: 1284
- Joined: Sat Jul 20, 2013 1:57 am
Re: Stuck 105 derailleur
Postby AndrewCowley » Tue Feb 20, 2018 7:15 pm
The FD is the only place I use WD40. I find anything else just doesn't get into where it needs to. I also have a 105 5700 FD and have been told that it getting stuck / gummed up is a known issue. Mine once got so bad that it wouldn't move at all. WD40 fixes it for me. I now apply it regularly.
- Duck!
- Expert
- Posts: 9877
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Stuck 105 derailleur
Postby Duck! » Tue Feb 20, 2018 7:31 pm
Doesn't sound like it. If the spring or its locating tab were broken the derailleur would be able to move very freely, just not able to pull itself to the low gear position. It's stuck, which screams out corroded pivot pins & bushings, or a bent derailleur body.lone rider wrote:Is the spring broken?
I had a thought, but it got run over as it crossed my mind.
- Duck!
- Expert
- Posts: 9877
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Stuck 105 derailleur
Postby Duck! » Tue Feb 20, 2018 7:34 pm
5600 & later derailleurs are rivetted together, so completely impossible to pull apart. 5500 & older models were bolted, so could easily be dismantled for service, with no e-clips to fly everywhere.ValleyForge wrote:
Hope it is easier to take apart than my Campy R/SR FDs. E-washers flicking all over the garage.
I had a thought, but it got run over as it crossed my mind.
- Duck!
- Expert
- Posts: 9877
- Joined: Tue May 21, 2013 8:21 pm
- Location: On The Tools
Re: Stuck 105 derailleur
Postby Duck! » Tue Feb 20, 2018 7:41 pm
Corrosion breaker, for want of a better term, is exactly that; a product intended for getting in & freeing corroded parts. WD40 is passable, Inox is better, but there are also other products to do that.brokenbus wrote:Hi Duck can you be more specific with what a corrosion breaker is?Duck! wrote:That won't do anything. It needs a corrosion-breaker.OnTrackZeD wrote:Try degreasing it before you relube it.
I put some innox on it last night which is a better form of WD 40.
I also have some liquid lithium grease spray- worth a shot of this.
Degreaser is exactly what its name implies, a product for dissolving grease, and that's completely irrelevant to the problem at hand. In fact, many degreasers are quite alkaline, which also makes them rather corrosive, so if anything will make the problem worse.
I had a thought, but it got run over as it crossed my mind.
-
- Posts: 646
- Joined: Sat Mar 13, 2010 7:12 pm
- Location: Blackhead NSW
Re: Stuck 105 derailleur
Postby brokenbus » Wed Feb 21, 2018 10:47 am
Thanks everyone for the comments. I will keep the lube up to the pivots. I have thought about it and are probably guilty of keeping it too clean and not lubing the pivots at all.
Jump to
- General Australian Cycling Topics
- Info / announcements
- Buying a bike / parts
- General Cycling Discussion
- The Bike Shed
- Cycling Health
- Cycling Safety and Advocacy
- Women's Cycling
- Bike & Gear Reviews
- Cycling Trade
- Stolen Bikes
- Bicycle FAQs
- The Market Place
- Member to Member Bike and Gear Sales
- Want to Buy, Group Buy, Swap
- My Bikes or Gear Elsewhere
- Serious Biking
- Audax / Randonneuring
- Retro biking
- Commuting
- MTB
- Recumbents
- Fixed Gear/ Single Speed
- Track
- Electric Bicycles
- Cyclocross and Gravel Grinding
- Dragsters / Lowriders / Cruisers
- Children's Bikes
- Cargo Bikes and Utility Cycling
- Road Racing
- Road Biking
- Training
- Time Trial
- Triathlon
- International and National Tours and Events
- Cycle Touring
- Touring Australia
- Touring Overseas
- Touring Bikes and Equipment
- Australia
- Western Australia
- New South Wales
- Queensland
- South Australia
- Victoria
- ACT
- Tasmania
- Northern Territory
- Country & Regional
Who is online
Users browsing this forum: No registered users
- All times are UTC+10:00
- Top
- Delete cookies
About the Australian Cycling Forums
The Australian Cycling Forums is a welcoming community where you can ask questions and talk about the type of bikes and cycling topics you like.
Bicycles Network Australia
Forum Information
Connect with BNA
Brought to you by Bicycles Network Australia | © 1999 - 2024 | Powered by phpBB ®
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.
This website uses affiliate links to retail platforms including ebay, amazon, proviz and ribble.