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Seized brake repair, and serious rust removal

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Seized brake repair, and serious rust removal

Old 04-10-12, 04:10 AM
  #1  
genkaimade
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Seized brake repair, and serious rust removal

Hi everyone,


This is my first post, as someone who hasn't ridden a bike since they were about 13, so please be gentle with me.


Effectively, I have acquired an old Saracen bike which has given me the itch to start riding again (in preparation for getting around at University next year). For the record, don't worry, I'm not going to head straight for the roads, I'll be taking some cycling-on-the-road safety lessons first (my work [I'm on a gap year] has offered ^_^ ).


This bike, however, has a number of problems, which are listed below. If anyone can offer any advice for any of them, I would greatly appreciate it!


------------------------------------------------------
1. The rear brakes seem to have seized - that is to say that I can't pull the the "trigger" back very far, and as far as I can pull it, it squeaks a lot. I have tried to dismantle it to clean and lubricate it, but I can't figure out how to - the adjusting barrel doesn't have a slit in it as shown at https://www.parktool.com/blog/repair-...e-v-brake-type (and in every youtube video concerning brake dissassembaly that I have found thus far), so I can't slide the cable out as everywhere that I have seen suggests I should be able to. What I seem to have, is a spring loaded adjusting barrel which after unscrewing can be pulled back a few mm (against the pull of the springs). Does anyone know what I should be doing to remove the brake cable?

The images below may be of some help.


Uploaded with ImageShack.us


Uploaded with ImageShack.us


2) There is a significant amount of rust on the chain as well as on the front and back gears. I have scrubbed them a fair amount with a steel thread pad type thing and WD40d the moving parts, but I'm not sure how much of a problem rust can be; is it worth completely taking everything apart and scrubbing for a day?

I had a few more questions, but I can't remember what the were; I will add them to the thread as I remember them...


Thank you!

Alex
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Old 04-10-12, 04:23 AM
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Asi
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Probably the brake cables are seized in the guides.

Replace those cables and housings, take apart the wheels and bottom bracket, repack the bearings with grease, change the chain, check the tyres as well (if they are cracked, discolored by sun, etc), as for the gears.. if badly rusted buy new ones, if not a scrub with some metal wire brush may revive them (but it's a lot of work and could be damaged anyway)

Or overhaul it at a LBS but IMO it does not worth that if you are not parallel with mechanics.


As for that brake lever, release the cable from the brake, press on the brake lever all the way and you have a screw (in the space uncovered by the lever pressed all the way) to remove the brake lever from the handlebar
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Old 04-10-12, 12:32 PM
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Well first off the big silver pin in the pictures is the hinge pin for the lever and not where the cable attaches. The cable end is in the hole in the "corner" of the lever and becomes exposed when you pull the lever back.

Since this stuff has you all mystified I'd strongly suggest you get very familiar with the repair page at www.parktool.com/repair . Hover the mouse over the bike until the label about what you want to look at comes up then click. Navigate through the options given to find the sort of parts which look the most like yours and read the procedure for working on them.

With things like sticking brakes it's best to separate the three main parts and evaluate each on its own. This means you want to disconnect the caliper or V brake arms from the cable and disconnect the cable from the levers. Then check and service each of the three parts separately. In the case of cable and housing if they are locked up then simply replace the cable and housing with new lined housing and stainless cables. This means going to a bike store for the stainless wire cables and better but still basic lined housing. THe stuff at the cheapie budget stores such as Walmart are often still simply galvanized carbon steel and will rust and jam sooner or later.

The same thing will likely apply to the shifter systems as well. Get the controls, cable and derailleurs all separated and deal with each on its own. All such parts should be able to move easily and with a snappy manner while not being too loose and wobbly.
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Old 04-11-12, 02:42 AM
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genkaimade
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Thank you very much Asi and BCRider! I have started putting your advice into action already!

Just for the record BCRider, I'm not quite naive enough to think the silver thing in the photo was where the brake cable attached The focus of the photo was the model number type things which I thought may make it easier to identify a solution if this were something uncommon

Thank you once again!

Originally Posted by Asi View Post
Probably the brake cables are seized in the guides.

Replace those cables and housings, take apart the wheels and bottom bracket, repack the bearings with grease, change the chain, check the tyres as well (if they are cracked, discolored by sun, etc), as for the gears.. if badly rusted buy new ones, if not a scrub with some metal wire brush may revive them (but it's a lot of work and could be damaged anyway)

Or overhaul it at a LBS but IMO it does not worth that if you are not parallel with mechanics.


As for that brake lever, release the cable from the brake, press on the brake lever all the way and you have a screw (in the space uncovered by the lever pressed all the way) to remove the brake lever from the handlebar
Originally Posted by BCRider View Post
Well first off the big silver pin in the pictures is the hinge pin for the lever and not where the cable attaches. The cable end is in the hole in the "corner" of the lever and becomes exposed when you pull the lever back.

Since this stuff has you all mystified I'd strongly suggest you get very familiar with the repair page at www.parktool.com/repair . Hover the mouse over the bike until the label about what you want to look at comes up then click. Navigate through the options given to find the sort of parts which look the most like yours and read the procedure for working on them.

With things like sticking brakes it's best to separate the three main parts and evaluate each on its own. This means you want to disconnect the caliper or V brake arms from the cable and disconnect the cable from the levers. Then check and service each of the three parts separately. In the case of cable and housing if they are locked up then simply replace the cable and housing with new lined housing and stainless cables. This means going to a bike store for the stainless wire cables and better but still basic lined housing. THe stuff at the cheapie budget stores such as Walmart are often still simply galvanized carbon steel and will rust and jam sooner or later.

The same thing will likely apply to the shifter systems as well. Get the controls, cable and derailleurs all separated and deal with each on its own. All such parts should be able to move easily and with a snappy manner while not being too loose and wobbly.
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