Gold Member Kivalo Posted January 31, 2021 Gold Member Share Posted January 31, 2021 They keep locking up. I bled them and they worked for a couple hundred yards and then they lock up again. What should I look for? Quote Link to comment Share on other sites More sharing options...
awful knawful Posted January 31, 2021 Share Posted January 31, 2021 Brakes? 😜 Quote Link to comment Share on other sites More sharing options...
awful knawful Posted January 31, 2021 Share Posted January 31, 2021 What do you mean by locking up? Quote Link to comment Share on other sites More sharing options...
Big Crappie Posted January 31, 2021 Share Posted January 31, 2021 1 minute ago, awful knawful said: Brakes? 😜 brokes Quote Link to comment Share on other sites More sharing options...
CFM Posted January 31, 2021 Share Posted January 31, 2021 Do you apply brakes and they stay applied or do they apply themselves ? How do you unapply them ? Quote Link to comment Share on other sites More sharing options...
Zambroski Posted January 31, 2021 Share Posted January 31, 2021 You can try to flush the system if it got dirt/water in it and clean out the master cyl really well. I'd guess it's probably a damaged O-ring in the caliper. You can take it apart and clean it or, just buy another if flushing doesn't work. 1 Quote Link to comment Share on other sites More sharing options...
01mxz800 Posted January 31, 2021 Share Posted January 31, 2021 who needs brakes Quote Link to comment Share on other sites More sharing options...
Mainecat Posted January 31, 2021 Share Posted January 31, 2021 Your caliper piston is rusted. Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted January 31, 2021 Platinum Contributing Member Share Posted January 31, 2021 Make sure the small pin hole in the master cylinder isn’t blocked 1 Quote Link to comment Share on other sites More sharing options...
Gold Member Kivalo Posted January 31, 2021 Author Gold Member Share Posted January 31, 2021 1 hour ago, awful knawful said: What do you mean by locking up? 1 hour ago, CFM said: Do you apply brakes and they stay applied or do they apply themselves ? How do you unapply them ? Each time I apply the brake it's gets a little bit stiffer until eventually its locked up and won't release. Quote Link to comment Share on other sites More sharing options...
Gold Member Kivalo Posted January 31, 2021 Author Gold Member Share Posted January 31, 2021 1 hour ago, Mainecat said: Your caliper piston is rusted. Yeah that's a definite possibility, it's sat for a while. Quote Link to comment Share on other sites More sharing options...
CFM Posted February 1, 2021 Share Posted February 1, 2021 How hard to push piston back in ? Quote Link to comment Share on other sites More sharing options...
Gold Member Kivalo Posted February 1, 2021 Author Gold Member Share Posted February 1, 2021 6 minutes ago, CFM said: How hard to push piston back in ? No idea, I decided its someone else's problem to fix and I'll just pay the bill. Quote Link to comment Share on other sites More sharing options...
CFM Posted February 1, 2021 Share Posted February 1, 2021 You never pushed cups back but you just bled ? Quote Link to comment Share on other sites More sharing options...
teamgreen02 Posted February 1, 2021 Share Posted February 1, 2021 Take apart the caliper. Shouldn't be that bad of a job. On my sled it was a better deal to just buy a new one. By the time you buy pads, pistons, seals, and a bearing you might as well just buy the whole caliper for the same price. Quote Link to comment Share on other sites More sharing options...
Gold Member 800renegaderider Posted February 1, 2021 Gold Member Share Posted February 1, 2021 (edited) Just stop the old fashion way throw your feet out of the tunnel and dig your heels in the snow. I’d say a new caliper is in order if you don’t wanna use your feet. Edited February 1, 2021 by 800renegaderider Quote Link to comment Share on other sites More sharing options...
Mainecat Posted February 1, 2021 Share Posted February 1, 2021 3 minutes ago, 800renegaderider said: Just stop the old fashion way throw your feet out of the tunnel and dig your heels in the snow. I’d say a new caliper is in order if you don’t wanna use your feet. He’s a sailor and should have an anchor to toss out. A rusty caliper piston takes a few minutes to fix. 3 Quote Link to comment Share on other sites More sharing options...
Gold Member Kivalo Posted February 1, 2021 Author Gold Member Share Posted February 1, 2021 1 hour ago, CFM said: You never pushed cups back but you just bled ? I mean I did think about it. Quote Link to comment Share on other sites More sharing options...
GGNHL Posted February 1, 2021 Share Posted February 1, 2021 My buds MXZ 500 had the same issue, its up in the brake reservoir on the handlebars, the return valve is clogged so when the engine warms the brake fluid and you hit the brakes it's not allowing the fluid to return and therefore puts pressure on the caliper. 1 Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted February 1, 2021 Platinum Contributing Member Share Posted February 1, 2021 11 minutes ago, GGNHL said: My buds MXZ 500 had the same issue, its up in the brake reservoir on the handlebars, the return valve is clogged so when the engine warms the brake fluid and you hit the brakes it's not allowing the fluid to return and therefore puts pressure on the caliper. Yep that's probably it. Great way to start a bonfire if needed just make sure you have insurance first 1 Quote Link to comment Share on other sites More sharing options...
gravy davey Posted February 1, 2021 Share Posted February 1, 2021 (edited) 17 hours ago, Skidooski said: Make sure the small pin hole in the master cylinder isn’t blocked This my 2000 did this last year caliper was on fire. The small hole in the master cylinder was plugged had to use a pin to clean it out. Edited February 1, 2021 by gravy davey Quote Link to comment Share on other sites More sharing options...
Gold Member Kivalo Posted February 1, 2021 Author Gold Member Share Posted February 1, 2021 What hole are you referring to? Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted February 1, 2021 Platinum Contributing Member Share Posted February 1, 2021 13 minutes ago, Kivalo said: What hole are you referring to? This is a 2001 break reservoir that I just dug out but you can see the second hole that's pin sized Quote Link to comment Share on other sites More sharing options...
Gold Member Kivalo Posted February 1, 2021 Author Gold Member Share Posted February 1, 2021 Just now, Skidooski said: This is a 2001 break reservoir that I just dug out but you can see the second hole that's pin sized I'll give it a look see. What's it do anyhow? Quote Link to comment Share on other sites More sharing options...
Platinum Contributing Member Skidooski Posted February 1, 2021 Platinum Contributing Member Share Posted February 1, 2021 (edited) 4 minutes ago, Kivalo said: I'll give it a look see. What's it do anyhow? Return port https://www.dootalk.com/forums/topic/1501018-master-cylinder-cleaningbrake-system-flush/ Edited February 1, 2021 by Skidooski Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.