Question about Motorcycles

1 Answer

Piston sticking wont release the brake properly where can i get a new piston and seals

Posted by Anonymous on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,978 Answers

If you drive a short distance and the wheel is locking up. You can release the pressure by opening up the bleeder valve on the wheel. This should allow you to drive back to your starting point before it locks up again. The problem in in the master cylinder on the handlebar. If you take off the cover. put a wad of lint free cloth in the reservoir to soak up fluid. Do not spill on paint or plastic parts, cover bike with plastic. You will see a large hole the fluid uses to feed the piston. Now look more closely and you will see a tiny pin hole that returns the fluid back to the reservoir. This is plugged . Clean this pin hole with a piece of wire ( one wire cut from a wire brush will do ). Fill and bleed the system and your problem should be solved. If the bike is old you should replace all the rubber seals in the master cylinder and wheel cylinder (You probably don't need them.)

Posted on May 16, 2010

Ad

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.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Left side brake will not release


new piston seal possibly not seated correctly and has rolled out of position not allowing piston to return to place once pressure is released.. remove and examine and check condition of seal.

Jan 12, 2016 | Cars & Trucks

1 Answer

My brakes stick on the front for acouple of seconds after pedal release


you need to have the calibers checks for seal failure....Thier is a seal on the inside of the piston that ends as the pistons press the pads onto the rotors...once this seal gasket fails you will have piston caliber stick,or failure...when you press the brakes,the master cylinder forces the fluid into the caliber behind the pistons and pressure is needed for them to work properly..Hope this helps...

Aug 09, 2011 | Jaguar XJ12 Cars & Trucks

1 Answer

The brakes are sticking on the drivers side of my 04 chevy cavalier...how can i unstick the brake?


since your complain is on the driver side sticking brake, so i do not suspect that the failure in on your hydrovac, it could be the that your driver side brake caliper piston needs seal kit replacement thats why when you press the brake and when you depress it the piston doesnt retracts. you need to remove the driver side wheel and remove the brake caliper assembly, take off the brake pads, press the brake till the piston comes out, inspect the piston condition and change it if damage along with the seal kit. make sure to bleed the brake before driving the car to release presence of air in your brake system.

May 06, 2010 | 2004 Chevrolet Cavalier

1 Answer

Piston sticking wont release the brake properly ,where can i get a new piston and seals


If you bleed the caliper and the wheel locks up after you drive a couple blocks you just need to clean your master cylinder on the handlebar, you will see a large hole that feeds the piston brake fluid. Next to it is a tiny pin hole that allows fluid to return to the reservoir , this is plugged with dirt or rust. If you did not overheat the disc and caliper they should be fine. You can get a new oil seal and dust seal for the caliper and a master cylinder rebuild kit from a Yamaha dealer if you need them. Most of the time you only need to pull the piston out of the master, blow out or push a piece of fine wire through the return pin hole to clear it, bleed the system, and it should work like new.

Mar 22, 2010 | Yamaha SR 125 Motorcycles

1 Answer

1985 gold wing my front break is stuck .... where do i start i have opened the bleeder and still seems to be stuck ....


Corrosion develops inside the caliper and causes the piston(s) to stick and fail to retract when the brake lever is released.
What you will need to do is remove and disassemble the calipers. Use compressed air to remove the pistons from the calipers by applying a carefully controlled amount of air pressure to the port where the brake line was attached (be careful to not let the piston become a projectile). Carefully pry the piston seals from the groove inside the caliper bore and clean everything thoroughly with hot soap and water (SimpleGreen works well). Clean all corrosion and other contaminants from the caliper and pistons, paying close attention to the groove where the piston seal goes. Use a dental instrument or similar tool to scrape all traces of corrosion from the groove (this is the key to success).
Reassemble the calipers with new piston seals and use brake fluid to lubricate the pistons as they go in. Reinstall, top off the master cylinder with fresh brake fluid, and bleed the system. Your brakes will now function like new for the next decade or so.

Dec 16, 2009 | 1982 Honda GL 1100 Gold Wing

2 Answers

Calipers are hung up


This usually happens after a long period of storage: the first time you apply the brakes, they fail to release their grip on the brake rotors. Moisture in the system causes corrosion to develop which prevents the caliper pistons from retracting when the brake lever (or brake pedal) is released.

What you need to do is take the calipers apart and remove the pistons. With the pistons removed, carefully pry out the rubber piston seals and soak everything in soapy water. Using a dental instrument or similar device, be sure to clean all of the corrosion from the groove where the piston seal fits into the caliper. Replace the seal and reassemble everything using clean DOT3 brake fluid as it goes back together.

Refill the system with new brake fluid and bleed out the air. Once completed, your brakes should work like new.

Oct 24, 2009 | 1979 Honda GL 1000 (K3)

1 Answer

81 honda cb650 custom. when my brakes get


Sound like your brake caliper for the front (I'm assuming that it's the front) is hanging up. They get corrosion and the caliper piston sticks. Have it rebuilt, or do it yourself. I take it off, and use compressed air at the hose connection to "blow" out the piston, with a piece of wood where the pads go to protect the piston from the blasting out. Be careful when doing this because it comes out like a shot!!! If it wont move, I have made a grease fitting fastener that threads in, and pumped grease into it to remove the piston, messy but safer. Clean up the piston and caliper real good and re-asemble. Use brake fluid to lube up the seal.

Jul 31, 2009 | 1996 kawasaki GPZ 500 S - GPX 500 R

1 Answer

Front brakes binding


if pistons can be manually pushed back, then you may have **** in the brake line going to that caliper. a blockage will cause that. the piston seals may be damaged. they are square so when the piston goes out, the seal rocks forward but wants to pull the piston back when pressure is released.don't pull the caliper apart unless you know what your doing. and if you do then i don't need to explain the process.

Jul 14, 2009 | 2004 kawasaki ZX-10R

1 Answer

How do i replace the front caliper seal on 06 malibu maxx??????


while the seals in the calipers are replaceable, its probably easier just to get a new/re manufactured caliper. if for any reason the seals don't work perfectly you could lose control of the vehicle when attempting to stop. with that said i'll try to explain the best i can how to replace the seals in the calipers for that vehicle.

1. jack up the front of the vehicle, place on jackstands and remove the front wheels, make sure the parking brake is on
2. unbolt the caliper and unbolt the brake line from the caliper and take caliper to a clean bench
3. remove the dust boot retaining ring on the caliper that holds the boot to the caliper itself
4. using a blowgun with a rubber tip apply low pressure compressed air where the brake line was bolted to the caliper to push the piston out of the bore (be carefull and ready because the piston may shoot out with some force)
5. when the piston comes out you will need to replace the dust boot and the seal so remove the boot and seal carefully so you don't scratch the piston ( the seal is actually in the caliper piston bore hole)and throw out the old seal and boot.
6. inspect all the surfaces and make sure there are no imperfections at all on the piston, the piston bore, or the caliper, if the surfaces are marred in anyway, replace the caliper, if they are good, using brake cleen and compressed air clean all parts then dry them
7. get the new seal and lubricate with DOT 3 brake fluid
8. install new seal into the caliper bore
9. apply a thin coat of DOT 3 brake fluid to the piston itself
10. install bottom half the the caliper piston into the caliper bore.
11. install new dust boot seal onto the piston
12. compress the piston to the bottom of the caliper bore
13. fully seat the dust boot seal into the caliper and install retaining ring
14. reinstall on vehicle (make sure to use a NEW copper washer on the brake line to caliper fitting) and bleed the braking system while checking for leaks.

repeat process for the other side.

if the caliper leaks at all from the piston after seal replacement, replace the caliper.

make sure you properly bleed the brakes before attempting to drive your car.

*these direction were extracted from personal experience and manufacturer information*

any other questions just ask!


Feb 20, 2009 | 2006 Chevrolet Malibu Maxx

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

80 people viewed this question

Ask a Question

Usually answered in minutes!

Top Motorcycles Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4535 Answers

yadayada
yadayada

Level 3 Expert

76630 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...