Retrobike Forum Index

It is currently Sat Dec 10, 2016 2:39 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: V brake help needed
PostPosted: Sat May 18, 2013 9:05 pm 
Retro Guru

Joined: Sat Jan 07, 2012 11:16 pm
Posts: 805
Location: North London
Hello all, just ventured over from the road section to pick you guys brains on a v brake mount problem I've got.

Basically I removed the old V brakes from my beater bike (old rusty ridgeback tourer) and found that the brass bushes from the caliper pivot are left on the canti/V stud/mounts. Ok, I expected it would just slide off but it is stuck!!! the strange thing is that they are loose enough to move forward 2mm and will spin freely around the mount but just won't pull off from the front :x it's the same on both sides. It had cheapy Tektro Vs on there which must be as old as the bike (approx 10yrs), the springs are knackered so took them off to fit some equally cheap halfords replacements. The rear end was no problem, old removed and new fitted and working fine... but the front is another story!

Now I'm stuck with no front brakes on my work bike and I need to ride to work again on monday! Any help would be much appreciated.


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sat May 18, 2013 9:20 pm 
Old School Hero
User avatar

Joined: Sat Apr 13, 2013 9:40 pm
Posts: 246
Either place a flat spanner in the 2mm space and tap them off with a light hammer or grip with mould grips and tease them off. Are the boss bolts loose when screwed into the bosses? If they really won't budge then maybe the bosses will unscrew and new ones can but put on to put new brake on.


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sat May 18, 2013 9:24 pm 
Old School Hero
User avatar

Joined: Sat Apr 13, 2013 9:40 pm
Posts: 246
SJB7810 wrote:
Either place a flat spanner in the 2mm space and tap them off with a light hammer or grip with mould grips and tease them off. Are the boss bolts loose when screwed into the bosses? If they really won't budge then maybe the bosses will unscrew and new ones can but put on to put new brake on.


Failing that you should be able to hacksaw the offending old brake bits in no time a slight bulge or bend in the bosses could just be obstructing them from popping off.


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sat May 18, 2013 9:32 pm 
Retro Guru

Joined: Sat Jan 07, 2012 11:16 pm
Posts: 805
Location: North London
Yes the bolts are very tight to screw in so you could be right that the bosses are slightly bent. Already tried mould grips and tapping off with a punch but with no results. I don't fancy replacing the bosses so might have a go at hacking the bushes off next.


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sat May 18, 2013 9:44 pm 
retrobike rider
retrobike rider
User avatar

Joined: Sun Feb 19, 2012 10:08 am
Posts: 6852
Location: Nth Somerset, UK
Try a bit of heat on the bushes before trying to get them off.

Failing that, I would use a junior hacksaw to cut a spiral slot. As the bushes are brass, this should not take too long.


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sat May 18, 2013 9:47 pm 
Old School Hero
User avatar

Joined: Sat Apr 13, 2013 9:40 pm
Posts: 246
If you can heat up the parts that need to come off but not the bosses you should be able to tease them off without cutting.


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sun May 19, 2013 12:08 am 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider

Joined: Thu May 06, 2010 10:05 pm
Posts: 5660
Location: Aberdeen
It may be easier to just remove the brake bosses with the brass bushings still attached, if the bushes won't come off then it may be the bosses are bent slightly out of shape, and you may find that after battling to get the bushes off the bosses are in an even worse state or even unusable.
You can get new brake bosses for a couple of quid, or someone on here probably has some laid around doing nothing that they can karma to you.
Sometimes for the sake of a few quid you can save yourself a lot of hassle :)

Option 2: is to remove the bosses and replace with the bosses from another bike until you sort a more permanent solution (I'm guessing that as you are a Retrobike member you probably have two or more bikes in your man-cave :lol: ).


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sun May 19, 2013 1:21 am 
Old School Grand Master
User avatar

Joined: Sun Sep 05, 2010 1:10 am
Posts: 4756
Location: Heathfield, East Sussex
...but the chances are the bosses are welded on; and it's MOLE grips! :|


Top
 Profile  
 
 Post subject: Re: V brake help needed
PostPosted: Sun May 19, 2013 8:45 pm 
Retro Guru

Joined: Sat Jan 07, 2012 11:16 pm
Posts: 805
Location: North London
Well! it seems the old brakes were screwed in so hard the bosses had got squeezed at the ends making them slightly conical shaped, I'd have thought the bolts would have sheered first. I've had to file them down a bit now to get the new ones on. Weird!

Anyway cheers for the help guys. Heating wasn't any use as the bosses were about 0.3mm flared out at the ends so went in with the hack saw and cut the bushes off.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: dubya3, Gadro, Google Adsense [Bot], kermitgreenkona88, Smithjss70, youngsspeed and 63 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group