Locked Rear Brake Pedal

[Skateguy50]

Had the 850 parked for winter and that got extended till now, it was sticking in the fall before parking it but totally frozen up now.

I already went through the seals and lines and all of that and when removed from the fluid part of the system the pedal still won't move so I know that is my issue.

My question is what has worked for others to get that off without mushrooming the metal to much? I have tried repeated soaking with pb blaster, heating with a propane torch, and of course hitting it with a hammer. I have tried to use a bolt to hit the center and not the edges but still it already is a tight fit to slide the lever back on.

Right now I am soaking it with more pb blaster and trying to hit the lever with the hammer to rotate it then slide it out for cleaning and greasing but no luck... I am planning to pickup my 8lb hammer on the way home today and a few quick hits with that should work better than repeated hits with a 1lb.

So yea I have a plan but if anyone else has gone through this please share some tips if you got them.

[chuck hahn]

Shoot it with some penetrating oil ( PB Blaster) and let it sit a while to soak in. Use a rubber mallet from the bottom of the pedal to get it to go up and then step on the pedal..keep repeating this process and apply more oil and keep working it back and forth till its pretty loose. Then you can remove the rear brake cylinder arm and spring and use a brass drift to knock the linkage out of the frame. Sand paper the frame and arm and grease the crap out of each and reassemble.

[chuck hahn]

People always forget that this joint needs a drop or two of oil from time to time. From both sides too!!!

[chuck hahn]

Wonder if it would be worth drilling and tapping the frame for a grease zerk once its apart??

[Skateguy50]

thanks for the advice, friend bought me a rubber mallet last year as I all to often go straight to my 8lb hammer. As i have not actually rode this bike more than an initial test ride I plead the 5th on the oiling part.

[Skateguy50]

So I didn't find the rubber mallet and the 8lb is at a friends house, resorted to the pb blast and using a regular hammer. After I got it rotating slightly I went back to driving the piece out and used an 8" extension for my 1/2 drive to not mushroom out the splines. It did pretty good for that but hitting the end the socket goes into has thinner walls and a tiny piece of metal broke off and hit the arm holding the socket... this tiny shard had perfect aim and cut a vein and my hand was immediately soaked in blood.

Tools are still in the yard since Saturday but I will finish it off soon lol.



I need to get back to riding so I stop hurting myself, lol

[chuck hahn]

Blood, sweat, and tears...LMAO. Youll cry when you finally get that ride in..but for now its the blood and sweat!!!

[duaneage]

I had one on a 750L I parted out which went to the scrap heap still in the frame. The brake pedal pivot was welded solid.