PilotOdyssey.com :: View topic - FL350 Rear Caliper Problems

So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas?

New To Odesseys wrote:

So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas?

"they work for about 5 hard braking stops then they lock up" - How are you unlocking them to do it again? Need more details but sounds like it's possible the piston is getting stuck. Did you polish it while the caliper was apart?

Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve?

rmesser wrote:

Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve?

This is a 350, no master cylinder on the wheel. Should I check the back break line? Next time when it freezes should I relieve the pressure and see if it unlocks?

rmesser wrote:

Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve?

This is a 350, no master cylinder on the wheel. Should I check the back break line? Next time when it freezes should I relieve the pressure and see if it unlocks?

dipnadactyl wrote:

New To Odesseys wrote:

So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas?

I take a screw driver and pry the pads out. I cleaned the piston with Brillo. Should I actually "polish" it?

New To Odesseys wrote:

dipnadactyl wrote:

New To Odesseys wrote:

So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas?

I take a screw driver and pry the pads out. I cleaned the piston with Brillo. Should I actually "polish" it?

Brillo pad will not do it any good. I would think you want a smooth as surface as you can get.

Do the fronts return properly?

New To Odesseys wrote:

dipnadactyl wrote:

New To Odesseys wrote:

So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas?

I take a screw driver and pry the pads out. I cleaned the piston with Brillo. Should I actually "polish" it?

Brillo pad will not do it any good. I would think you want a smooth as surface as you can get.

Do the fronts return properly?

Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve?

Which one was bad - Master cylinder or collapsed hose - or both?

Glad you found the problem.

Ironic, I currently have this problem.
I rebuilt the master when I got the machine. Rear Caliper worked great for a year or so. Then it started to drag on the brake disk. I then rebuilt the rear caliper (new seals / polished the piston), caliper still drags.
I then thought it was a collapsed hose so I replaced it with a stainless braided hose.
Still have that problem. The only way to resolve it is to bleed the excess pressure out of the caliper. When I went riding a few days ago, seems like I used the rear brakes like 5 times before the caliper locked up. I bled the excess pressure and it was free, braked five times and it locked up again.

I don't often use the E-brake, but all the components are new. I read in the forums someone just pulls the e-brake to bleed the brakes. I've done this also. Seems to drag too much after it was bled.

Any suggestions on how to fix a dragging caliper?

Author:	New To Odesseys [ Tue Jul 25, 2017 12:49 pm ]
Post subject:	FL350 Rear Caliper Problems
So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas?

Author:	dipnadactyl [ Tue Jul 25, 2017 1:09 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
New To Odesseys wrote: So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas? "they work for about 5 hard braking stops then they lock up" - How are you unlocking them to do it again? Need more details but sounds like it's possible the piston is getting stuck. Did you polish it while the caliper was apart?

Author:	rmesser [ Tue Jul 25, 2017 1:48 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve?

Author:	New To Odesseys [ Tue Jul 25, 2017 6:41 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
dipnadactyl wrote: New To Odesseys wrote: So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas? "they work for about 5 hard braking stops then they lock up" - How are you unlocking them to do it again? Need more details but sounds like it's possible the piston is getting stuck. Did you polish it while the caliper was apart? I take a screw driver and pry the pads out. I cleaned the piston with Brillo. Should I actually "polish" it?

Author:	New To Odesseys [ Tue Jul 25, 2017 6:44 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
rmesser wrote: Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve? This is a 350, no master cylinder on the wheel. Should I check the back break line? Next time when it freezes should I relieve the pressure and see if it unlocks?

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FL350 Rear Caliper Problems http://www.pilotodyssey.com/PO/viewtopic.php?f=1&t=17521	Page 1 of 1

Author:	canadian oddy [ Tue Jul 25, 2017 6:53 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
New To Odesseys wrote: rmesser wrote: Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve? This is a 350, no master cylinder on the wheel. Should I check the back break line? Next time when it freezes should I relieve the pressure and see if it unlocks? Yes -- open the bleed nipple on caliper and see if it releases. If it does then your hose is collapsed inside. If it don't your piston is probably sticking.

Author:	rmesser [ Wed Jul 26, 2017 4:52 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
New To Odesseys wrote: rmesser wrote: Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve? This is a 350, no master cylinder on the wheel. Should I check the back break line? Next time when it freezes should I relieve the pressure and see if it unlocks? ok the master cylinder is not on the handlebar on the fl350, but it still has a master cylinder. The fluid has to go bake to the reservoir - could the master be bad not allowing the fluid to return?

Author:	rmesser [ Wed Jul 26, 2017 4:55 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
New To Odesseys wrote: dipnadactyl wrote: New To Odesseys wrote: So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas? "they work for about 5 hard braking stops then they lock up" - How are you unlocking them to do it again? Need more details but sounds like it's possible the piston is getting stuck. Did you polish it while the caliper was apart? I take a screw driver and pry the pads out. I cleaned the piston with Brillo. Should I actually "polish" it? Brillo pad will not do it any good. I would think you want a smooth as surface as you can get. Do the fronts return properly?

Author:	Wellsmills [ Wed Jul 26, 2017 6:17 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
rmesser wrote: New To Odesseys wrote: dipnadactyl wrote: New To Odesseys wrote: So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas? "they work for about 5 hard braking stops then they lock up" - How are you unlocking them to do it again? Need more details but sounds like it's possible the piston is getting stuck. Did you polish it while the caliper was apart? I take a screw driver and pry the pads out. I cleaned the piston with Brillo. Should I actually "polish" it? Brillo pad will not do it any good. I would think you want a smooth as surface as you can get. Do the fronts return properly? Yes the fronts return property. ( this is my other account)

Author:	dipnadactyl [ Wed Jul 26, 2017 10:31 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
rmesser wrote: New To Odesseys wrote: dipnadactyl wrote: New To Odesseys wrote: So on the 350 my rear brakes never worked, I took the caliper off rebuilt it then put it back on ( with new pads) and now they work for about 5 hard braking stops then they lock up any ideas? "they work for about 5 hard braking stops then they lock up" - How are you unlocking them to do it again? Need more details but sounds like it's possible the piston is getting stuck. Did you polish it while the caliper was apart? I take a screw driver and pry the pads out. I cleaned the piston with Brillo. Should I actually "polish" it? Brillo pad will not do it any good. I would think you want a smooth as surface as you can get. Do the fronts return properly? Wire wheel, sandpaper at a minimum. Everything i have read says "make it shine". And replacing the seal & dust cover seal will help if you can find them

Author:	New To Odesseys [ Mon Jul 31, 2017 7:13 am ]
Post subject:	Re: FL350 Rear Caliper Problems
rmesser wrote: Could the master cylinder on the handlebar be bad? Could you have a collapsed hose acting like a check valve? that's what happened... I swapped it with the one from my other 350 and she works! Thanks everyone

Author:	rmesser [ Mon Jul 31, 2017 9:14 am ]
Post subject:	Re: FL350 Rear Caliper Problems
Which one was bad - Master cylinder or collapsed hose - or both? Glad you found the problem.

Author:	New To Odesseys [ Mon Jul 31, 2017 10:48 am ]
Post subject:	Re: FL350 Rear Caliper Problems
rmesser wrote: Which one was bad - Master cylinder or collapsed hose - or both? Glad you found the problem. Collasped hose

Author:	canadian oddy [ Mon Jul 31, 2017 11:27 am ]
Post subject:	Re: FL350 Rear Caliper Problems
[/quote]Yes the fronts return property. ( this is my other account)[/quote]

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Author:	New To Odesseys [ Mon Jul 31, 2017 9:22 pm ]
Post subject:	Re: FL350 Rear Caliper Problems
Thanks again! had a blast today riding

Author:	RoboRex2005 [ Tue Aug 22, 2017 10:30 am ]
Post subject:	Re: FL350 Rear Caliper Problems
Ironic, I currently have this problem. I rebuilt the master when I got the machine. Rear Caliper worked great for a year or so. Then it started to drag on the brake disk. I then rebuilt the rear caliper (new seals / polished the piston), caliper still drags. I then thought it was a collapsed hose so I replaced it with a stainless braided hose. Still have that problem. The only way to resolve it is to bleed the excess pressure out of the caliper. When I went riding a few days ago, seems like I used the rear brakes like 5 times before the caliper locked up. I bled the excess pressure and it was free, braked five times and it locked up again. I don't often use the E-brake, but all the components are new. I read in the forums someone just pulls the e-brake to bleed the brakes. I've done this also. Seems to drag too much after it was bled. Any suggestions on how to fix a dragging caliper?

Author:	canadian oddy [ Tue Aug 22, 2017 11:25 am ]
Post subject:	Re: FL350 Rear Caliper Problems
RoboRex2005 wrote: Ironic, I currently have this problem. I rebuilt the master when I got the machine. Rear Caliper worked great for a year or so. Then it started to drag on the brake disk. I then rebuilt the rear caliper (new seals / polished the piston), caliper still drags. I then thought it was a collapsed hose so I replaced it with a stainless braided hose. Still have that problem. The only way to resolve it is to bleed the excess pressure out of the caliper. When I went riding a few days ago, seems like I used the rear brakes like 5 times before the caliper locked up. I bled the excess pressure and it was free, braked five times and it locked up again. I don't often use the E-brake, but all the components are new. I read in the forums someone just pulls the e-brake to bleed the brakes. I've done this also. Seems to drag too much after it was bled. Any suggestions on how to fix a dragging caliper? That still sounds like a hose to me even though you said you replaced it. It could also be that your master cylinder is not allowing the return pressure. Did you rebuild that ?? If you feel the rear hose is good then it's gota be the master.