Brakes 83 interstate


Information and questions on GL1100 Goldwings (1980-1983)
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marve319
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Brakes 83 interstate

Postby marve319 » Mon Jan 13, 2014 8:17 am



I cleaned my calipers several months ago and everything was working fine. I put new pads all the way around yesterday. I rode it and it seemed to brake very well. I got up this morning to ride it into work. When I tried to push it out of my garage, I could not move it with my feet. What should I be looking for now to correct that. I have a hard pedal on both.



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RBGERSON
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Re: Brakes 83 interstate

Postby RBGERSON » Mon Jan 13, 2014 8:45 am

return port in master maybe clogged so keeps pads/calipers engaged? is it front or back wheel that is locked. To relieve open the bleeder for a second. A rebuild or at least cleaning the master in question is needed..most likely.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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WingAdmin
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Re: Brakes 83 interstate

Postby WingAdmin » Mon Jan 13, 2014 12:33 pm

As mentioned, the problem is virtually guaranteed to be a clogged return port.

When you retracted the pistons to install the new pads, did you open the bleeders to let the excess fluid out? Or did you just push the pistons in?

If you just pushed the pistons in, all the sludge and crud that had gotten past the piston seals and had migrated down to the calipers, got pushed back up to the master cylinder, where it is now clogging your return port. This is why you should ALWAYS open the bleeder valve on the caliper when retracting the piston, so that contaminated fluid is ejected. Then top up the reservoir with fresh brake fluid.

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marve319
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Re: Brakes 83 interstate

Postby marve319 » Mon Jan 13, 2014 5:08 pm

Thanks Wing Admin and RBGERSON for the information. That is exactly what I did. I pushed the pistons in without opening the bleeder. I will try to release the fluid through the bleeders and see if that will release them. Thanks again and I will get back to you to let you know what happens.

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Re: Brakes 83 interstate

Postby WingAdmin » Mon Jan 13, 2014 7:34 pm

marve319 wrote:Thanks Wing Admin and RBGERSON for the information. That is exactly what I did. I pushed the pistons in without opening the bleeder. I will try to release the fluid through the bleeders and see if that will release them. Thanks again and I will get back to you to let you know what happens.


That will release them, but only temporarily - the fact that they aren't releasing says that the return ports are already clogged. Once you pump them up again (or get them hot) they will jam on all over again. The only way to fix it properly is to pull the master cylinder apart and clean out that return port.

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marve319
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Re: Brakes 83 interstate

Postby marve319 » Wed Jan 15, 2014 8:37 pm

I bled the entire system and got only a small amount of dirt. All three calipers are pumping up and fluid running clear. Do you think I still need to mess with the master cylinders? I have cleaned everything out and the master cylinders look clean. The brakes are pumping up well and are no longer locked. I ran an entire quart of fluid through the system of both master cylinders and everything "appears" to be working well now. It was the rear and front right that were locked in. Pistons looked like they were functioning properly going in and out without hanging up.

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Re: Brakes 83 interstate

Postby WingAdmin » Wed Jan 15, 2014 9:35 pm

marve319 wrote:I bled the entire system and got only a small amount of dirt. All three calipers are pumping up and fluid running clear. Do you think I still need to mess with the master cylinders? I have cleaned everything out and the master cylinders look clean. The brakes are pumping up well and are no longer locked. I ran an entire quart of fluid through the system of both master cylinders and everything "appears" to be working well now. It was the rear and front right that were locked in. Pistons looked like they were functioning properly going in and out without hanging up.


If it was the rear and front right, then the rear master cylinder is the one that was blocked. You might have got it cleaned out...you'll find out once you get out and riding, get it heated up, and see if they lock up again. Bring along a wrench just in case so you can crack a bleeder, let off the pressure and release the brakes, so you're not stranded if they do lock up.

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marve319
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Re: Brakes 83 interstate

Postby marve319 » Thu Jan 16, 2014 10:00 am

Could it be dangerous? Could they lock up and cause me a problem?

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Re: Brakes 83 interstate

Postby WingAdmin » Thu Jan 16, 2014 12:50 pm

marve319 wrote:Could it be dangerous? Could they lock up and cause me a problem?


They won't lock up all at once, but if it is blocked, as you continue to ride (and use your brakes, heating them up), especially in traffic, you'll notice them dragging more and more. Eventually you will smell burning brakes, and when you stop you'll find they are then locked solid...until you wait an hour or so for them to cool off, or crack the bleeder and let the pressure out.

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jeffcosmo
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Re: Brakes 83 interstate

Postby jeffcosmo » Sat Jan 18, 2014 7:56 am

marve319 wrote:Could it be dangerous? Could they lock up and cause me a problem?


Hate to be harsh, but, seriously, brakes not working properly and you're wondering IF it could be a problem??

YES, YES, and definitely YES!!!

That you got noticeable dirt out of the system when you bled means there is a problem. It's a sealed system, there should never be any dirt in it.

I bet the fluid was black.

Time for a rebuild of the brake system.

Cosmo

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marve319
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Re: Brakes 83 interstate

Postby marve319 » Tue Jan 21, 2014 10:41 am

Actually it was not black. In fact theater cylinders were very clear after a quart of fluid bleeding them. I ride the bike for about a hour on stop and go traffic last Monday and did not have any problems with the brakes. Maybe I was lucky. Thanks wing admin for your advice and input. The other input seemed a bit sarcastic.

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jeffcosmo
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Re: Brakes 83 interstate

Postby jeffcosmo » Tue Jan 21, 2014 6:33 pm

marve319 wrote:The other input seemed a bit sarcastic.


That, or someone concerned for your safety.

You get to choose.

Cosmo




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