Cb 360 brake stuck
- Thread starter azn_15317
- Start date
MotorbikeBruno
Over 1,000 Posts
Welcome, as a heads up, it might be a great idea to tell us what you've tried and possibly a little bit of information!
I'm assuming you just got the bike, and it has been sitting awhile?
Does the brake lever "work," is it spongy feeling at all, or just limp and has NO backpressure?
There is a bleeder valve on the brake caliper. It sticks up and is 8mm in size. If this is really rusty looking DON"T FORCE IT. IT WILL SNAP FOR SURE as these always do. Get some penetrating oil/lubricant and let it sit for a day or so. I like to wipe it down, and use a little bit of heat to caliper, then put a small amount on the threads of that 8mm bleeder valve, usually the heat causes the threads to pull in more lubricant to loosen the threads better.
Lastly, get some pics of it up so we can see what condition it's in. Photobucket works well, and gives links that you just copy and paste into here.
Bruno
I'm assuming you just got the bike, and it has been sitting awhile?
Does the brake lever "work," is it spongy feeling at all, or just limp and has NO backpressure?
There is a bleeder valve on the brake caliper. It sticks up and is 8mm in size. If this is really rusty looking DON"T FORCE IT. IT WILL SNAP FOR SURE as these always do. Get some penetrating oil/lubricant and let it sit for a day or so. I like to wipe it down, and use a little bit of heat to caliper, then put a small amount on the threads of that 8mm bleeder valve, usually the heat causes the threads to pull in more lubricant to loosen the threads better.
Lastly, get some pics of it up so we can see what condition it's in. Photobucket works well, and gives links that you just copy and paste into here.
Bruno
AlphaDogChoppers
Science is true whether you believe in it or not.
Give it a few whacks with a plastic faced hammer, (I call them candy axe,) or something like a deadblow hammer. That might free it up enough to move the bike, and get the caliper off.
If the caliper is stuck, you should take it apart and rebuild it. After you remove the caliper, use the brake lever to pump the piston out.
When you put it back together, lube the piston with silicone caliper grease.
If the caliper is stuck, you should take it apart and rebuild it. After you remove the caliper, use the brake lever to pump the piston out.
When you put it back together, lube the piston with silicone caliper grease.
mydlyfkryzis
当有疑问时踢你的敌人在生殖器上，你可以道歉后
To add to Alphadogs post, use a new seal ring (available from Honda Parts yet) and inspect the piston carefully. Any pitting will cause leaks, so it needs replacing.
They are available from Honda, or aftermarket has stainless steel at about 1/2 the price. I bought the SS one and it worked great. Also, clean the groove where the rubber ring sits in the caliper very well. scrape out any gunk, get it nice and clean.
They are available from Honda, or aftermarket has stainless steel at about 1/2 the price. I bought the SS one and it worked great. Also, clean the groove where the rubber ring sits in the caliper very well. scrape out any gunk, get it nice and clean.
AlphaDogChoppers
Science is true whether you believe in it or not.
What you say is good advice, but quite a few times I have been in the position of needed to fix a caliper immediately without waiting for parts, (or couldn't get parts,) and I have had great success with it. I pull the piston seal out of its groove and clean the groove well. I polish the piston on a buffing wheel. The grove gets some silicone caliper grease in it, and the old seal is put back in oriented the same as it was in before. I lightly grease the piston and install it. You can even get away with a few very small pits if you polish the piston.
MotorbikeBruno
Over 1,000 Posts
Have you tried the "simple" way of just unbolting the whole caliper? It comes apart into 2 pcs. The backside that faces the wheel will literally just fall off. I bet if you loosen the two large bolts holding the caliper together, it will fix your issue immediately, then you can move the bike around and pull unstick the caliper more easily.
mydlyfkryzis
当有疑问时踢你的敌人在生殖器上，你可以道歉后
AlphaDogChoppers said:
I don't disagree with you, but I also like to be a little conservative on brakes. The ring is $8, not a back breaker. My piston was deeply pitted, I polished and reused, but it continued to leak.
When I recommend online, I tend to be more conservative, as you don't always know the skill level of the person, and it is safer to change the piston then to recommend a polish job to someone who may not even recognize what a pit is, never mind be able to polish it.
AlphaDogChoppers
Science is true whether you believe in it or not.
You are completely correct. Brakes are not something to cheap out on. I sometimes use my experience and judgement to go a little less than whole hog when working on anything if it helps to get the job done on a deadline.
