Brake calliper problem.

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  • beaglebasher
    beaglebasher
    21 days ago
    I pushed the pads back in with a screwdriver yesterday but it's hard to say how easily they should move. The wheel spun freely. I then applied and released the brake and spun the wheel and you can hear the pads rubbing on the disc in a certain spot. I can't find the dial indicator so I used a feeler gauge between the pad and the disc and its got a warp in it, something like 14 thou. I haven't had time to look at it today but I will check a few things out tomorrow. 
    When I got home yesterday after deliberately not using the back brake I licked my finger and put it on the disc and it fuckin sizzled. I am thinking it's a combination of sticky pistons and the warped disc that is causing the problem. 
  • Hilly
    Hilly
    21 days ago
    That's too much, grab another disc mate, reckon you have found the culprit 👍
  • obisteve
    obisteve
    21 days ago
    What rear caliper have you got Beags, the single piston one with one side sliding on 2 pins that was used almost forever?
    If you've  got that one, have you greased the pins lately? How long since the piston seal was replaced?
  • beaglebasher
    beaglebasher
    20 days ago
    It is the one piece calliper with the four pistons that has the arm on it to mount on the axle. It hasn't been re-sealed for at least 14 years, probably never been done. 
    I can get the disc off ebay for $230.
    Just need to order the seal kit and I will get it happening. 
  • beaglebasher
    beaglebasher
    14 days ago
    Got a question for ya Hilly.
    Will I be able to get the back wheel out without removing the mudguard?
    I noticed you modified your hoist. 
    I am thinking I should make the same modification before I start this job.
  • 408
    408
    14 days ago

    These are pretty handy. You can jack the bike up enough to get the rear wheel out. Also handy to rotate the rear wheel when doing any engine or cam work with bike on the lift.
    Plenty of variations. I have one I can put a socket and ratchet on to raise and lower the bike.
  • beaglebasher
    beaglebasher
    14 days ago
    Thanks for that 408.  Do you happen to know how low it goes when its down and how high it is when its up?
    For $60 I dont think you could go wrong. 

  • Hilly
    Hilly
    14 days ago
    I've got the jack 408 pictured there, bloody handy bit of kit, that's how I get the back wheel off anything that goes on the lift, some bike lifts have a removable section at the rear so you only need to lift the rear wheel a little bit and the remove that section to pull the wheel backwards and down, I was going to mod mine like that but wheels and gravity ain't good for my back so I just use the jack, take the weight, pull axel etc, jack bike until I can lay the wheel over a bit and roll it out, the the back of the lift acts as a little work bench then 😁
  • 408
    408
    14 days ago
    Got mine as an accessory with Kendon Cruiser lift buy on here a few years back. Solid as a rock.  Most of them fold down nearly flat. You can get a bit more height out of them with a block of wood .

  • 408
    408
    13 days ago
    Quoting beaglebasher on 14 Dec 2025 07:58 AM

    Thanks for that 408.  Do you happen to know how low it goes when its down and how high it is when its up?

    For $60 I dont think you could go wrong. 


    You will see the pic that Hilly posted is also one for use with socket and ratchet. I reckon that is the way to go.
  • beaglebasher
    beaglebasher
    10 days ago
    Quoting beaglebasher on 14 Dec 2025 07:58 AM

    Thanks for that 408.  Do you happen to know how low it goes when its down and how high it is when its up?

    For $60 I dont think you could go wrong. 

    Quoting 408 on 14 Dec 2025 08:37 PM


    You will see the pic that Hilly posted is also one for use with socket and ratchet. I reckon that is the way to go.

    I ended up using a couple of car jacks and timber. Probably not the best solution but it works ok and pretty stable. Didn't have to lift it as high as I thought to get the wheel out.
    Went to reseal the caliper and discovered one piston in particular was seized so I am hopeful that was the culprit causing the overheating problem. 
    Should get it back together tomorrow and take it for a run.

  • Hilly
    Hilly
    10 days ago
    Well fuck a duck aye! Remember the rotor is outa spec as well, fixing the seized piston won't change that, if you successfully recon the caliper you will feel a pulse on the pedal when you apply the brake with that much warp.
  • beaglebasher
    beaglebasher
    9 days ago
    Yeah Hilly the disc was fucked but I fitted a brand new one. 
    When I  lifted the back wheel it seemed to be spinning freely enough but you could hear it rubbing the pads in one spot. I wouldn't have thought it was enough to make things hot but it's looking like it was the problem. 
    When I put it back together today I will spin it and hopefully hear nothing. 
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