Question about Motorcycles

1 Answer

On my 1986 GPZ600 the rear brake siezes up when I use it.

The rear brake keeps siezing up when I use it. The pistons do not appear to retract far enough back to allow the pads to be clear of the brake disc.i have taken the caliper off the bike loosened the bleed nipple and had to use a ''g'' clamp to push the brake pistons back into the caliper. Next I thoroughly cleaned of*** dirt and corrosion paying attention to the two round steel rods/guides that connect the two halves of the caliper. The rods/guides have been de-rusted and polished up with emery cloth then greased with high melting point grease and have made sure that the brake pads move smoothly on these rods/guides yet the problem still persists. I cannot think of a reason as to why the brake pistons do not retract back enough after checking the fluid level and the brake hoses are free of any kinks or acute bends. The fluid appears to be getting pumped into the caliper from the brake pedal and slave cylinder but not returning or allowing the calipers to retract when the brake is released. So the proble

Posted by Anonymous on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Expert
  • 267 Answers

The pistons themselves are generally the problem. The pins and guides just stop the pads from slopping about. Take pads out and caliper off and remove piston and clean out receptable. Check piston seal ring and dust (or packing) ring are not rolled, twisted or damaged. Your pads may even be worn too thin and plunger is having to push piston too far out and ring seals are not sliding on the smoother surface of piston receptable. Hope this helps. Below is a link to a typicall disc brake in exploded view form with part names.
Cheers.

http://www.cmsnl.com/kawasaki-1986-a3-zx550_model12812/partslist/F2294.html

Posted on May 17, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Right rear tire frozen


Handbrake mechanism, brake caliper or brake piston could be partially siezed or possibly rear wheel bearing siezed. If hanbrake was on over night start with that and then work on from there.

Dec 28, 2012 | 1998 Buick LeSabre

1 Answer

Need to replace parking brake cables on 1986GMC S15 4x4


most people find this out after they put their boat in water.
good time to service the rear brakes seeing it all has to come apart to change the cables. chances if the cables are siezed the rear adjusters are too!!!!!!!!!

Feb 02, 2012 | 1986 GMC S-15

1 Answer

Just got the bike back together and less than a mile down the road the front brakes started to sieze.I was wondering what could cause this in such a short time.


Brake style unkown. if caliper puck stuck or not retracting.. once it gets heat started swells quickly. drum & shoe dragging or not adjusted back far enough.. my thoughts....I have gottin good help at harleytalking.com ....

Apr 21, 2011 | Harley Davidson FXR Super Glide...

1 Answer

On my 1986 GPZ600 the rear brake siezes up when I use it.


Sounds like you need to service the caliper. Remove the piston from the caliper by pumping the brake pedal, be warned you will get brake fluid everywhere. Remove piston seals, dust and oil, you'll probably find that the grooves where they usually reside are full of 'crud' thoroughly clean the grooves, clean the seals then inspect seals for damage and replace if necessary, grease seals (high temp grease) and put back into caliper, wipe away excess grease. Inspect piston for corrosion, minor corrosion can be flatted back with 1200 grit sandpaper, if too badly corroded replace. lightly grease piston (high temp grease) and push into caliper. the piston should slide in easily by hand. Finally bleed caliper well, flush new fluid through entire system.

Mar 24, 2010 | 1987 kawasaki GPZ 500 S - GPX 500 R

3 Answers

1992 Honda Prelude Si brake caliper piston prob


As your car has a handbrake fitted to the rear calipers,you will need a piston wind in tool to retract the piston fully back into the caliper as when you adjust your handbrake the piston automatically winds itself to the required position for usage without this tool you are getting nowhere,so get hold of a tool to do the job and you should not have problem unless the piston has totally siezed on the screw then you will have a problem being the only way to repair would to be a new or refurbished caliper.

Feb 28, 2010 | 1992 Honda Prelude

3 Answers

How do you retract the caliper to change the brake


Dioes the calipper have any indentiontions? some calippers screw back into place where as some have to be squeezed back into place, also you have to remove the cap from the brake fluid bottle!!! while you are pushing the cylinder back into the calipper.

If its not going back at all then get some wd40 and spray all around the seal trying to get as much wd40 down the fine gap into the sleeve of the cylinder calipper lining. keep doing this and leave it over night use the whole can if you have to. if still no joy then the caliper is siezed and will need to be replaced. bear in mind some do screw counter and anti clockwise. I am not familiar with this model though.
regards
dan

Feb 26, 2010 | 2008 Saturn Aura

1 Answer

Brakes locking up


There can be a couple of things that can cause it. If the shoes are worn too bad, the piston can expand to its furthest travel and not be able to retract. If the master cylinder is bad, it may not be letting brake fluid to return to resevoir, likewise a wheel cylinder may be scored and leaking into the drum. Loose or broken parts rolling in the brake drum may be siezing against the drum when the brakes are applied. And lastly the brake may be adjusted to tight (these have a star adjuster that tightens the brake adjuster when rolling backwards and appying the brake.) Hope this helps, Marvin

Jan 21, 2010 | 1989 Ford F 150

2 Answers

My rear differential siezed up after I applied the brakes. The rear end hopped, jumped, and swerved violently. I took the rear cover off and no fluid was present. I am wondering how to unsieze a siezed up...


Are you certain that it 's the rear end, and not the brakes?

Did you set the emergency brake by accident?

I am not aware of any way that a rear differential will seize by the application of the brakes.

Dec 17, 2009 | 2002 Chevrolet Tahoe

1 Answer

Front brakes works poorly. takes too much effort


This piston may have siezed in the caliper. A little rust, corrosion on the piston can be enough to sieze it especially if the bike is left standing for an extended period.

Aug 31, 2009 | 2002 Yamaha Road Star Silverado

3 Answers

I can't retract the rear calper on my 2002 Jaguar X-type. I am changing the pads & rotor. vem


What are you using? A c-clamp or you hands? A c-clamp ussually works but can sometimes cause the piston to become ****-eyed in the caliper. Best bet is to use the proper tool or a c clamp. Both work good. If it won't retract with those, the piston is siezed. Time for a new caliper.

Mar 08, 2009 | 2002 Jaguar X-Type

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

144 people viewed this question

Ask a Question

Usually answered in minutes!

Top Motorcycles Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

75822 Answers

kakima

Level 3 Expert

102366 Answers

Are you a Motorcycle Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...