1991 gl1500 rear brakes


Information and questions on GL1500 Goldwings (1988-2000)
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alancu
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Motorcycle: 1991 gl1500 aspencade

1991 gl1500 rear brakes

Postby alancu » Thu Sep 11, 2014 9:53 am



hello I am new to the board. I am having a problem with my rear brakes, my rear caliper locked up and the pedal was rock hard , but it didn't seem to affect the front caliper. any ideas?



rayfie
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Re: 1991 gl1500 rear brakes

Postby rayfie » Thu Sep 11, 2014 8:42 pm

On my 1500 the rear brake pad was war out i put new pads an bleed the line, an it fix mine you need to bleed the anti-lock that in line to it my have a air pocket.

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wingpilot08
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Re: 1991 gl1500 rear brakes

Postby wingpilot08 » Fri Sep 12, 2014 7:45 am

rayfie wrote:On my 1500 the rear brake pad was war out i put new pads an bleed the line, an it fix mine you need to bleed the anti-lock that in line to it my have a air pocket.


Wow...glad I lived in GA for 15 years :lol: ...kind of understood what he was saying (pad were worn out) however the 1500 doesn't have ABS or anti-lock....
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Wingsconsin
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Re: 1991 gl1500 rear brakes

Postby Wingsconsin » Fri Sep 12, 2014 10:33 am

Caliper rebuild time in my opinion.
The cups (pistons) get crud on them over time. It wears the rubber parts out and the dirt and grime stick the moving parts solid
New rubber - a good cleaning - and new pads will yield good results.
Bleed the entire system starting at the front brake caliper and then the rear to clear old fluid and establish pressure.
The repair kit is around $30 available from Cyclemax.com
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rayfie
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Re: 1991 gl1500 rear brakes

Postby rayfie » Fri Sep 12, 2014 12:02 pm

Well if you have a 1500 SE it has ABS if you check when you put the rear brake on one front brake works this is part of you ABS i see you in Georgia You can email me i live in Georgia To. here my company email atiptopinspect@bellsouth.net

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wingpilot08
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Re: 1991 gl1500 rear brakes

Postby wingpilot08 » Fri Sep 12, 2014 1:16 pm

rayfie wrote:Well if you have a 1500 SE it has ABS if you check when you put the rear brake on one front brake works this is part of you ABS i see you in Georgia You can email me i live in Georgia To. here my company email atiptopinspect@bellsouth.net


Rayfie...the 1500 SE (and I believe all 1500's not just the SE) have UNIFIED braking..not ABS. The rear brake and the front left brake are on the foot brake pedal...the right front brake is controlled by brake lever...ABS was not introduced until the 1800's came out and even then not all 1800's had ABS..but also have unified braking (please correct me if I'm wrong). This is major difference between Unified braking and ABS. If you were told you have ABS...you were mis-informed. BTW...I no longer live in GA...relocated to PA. I do miss the N.GA mountains!
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WingAdmin
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Re: 1991 gl1500 rear brakes

Postby WingAdmin » Fri Sep 12, 2014 1:31 pm

The GL1800 does have unified braking, but it is far more complex than the system used in the GL1500.

But no ABS in the GL1500.

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wingpilot08
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Re: 1991 gl1500 rear brakes

Postby wingpilot08 » Fri Sep 12, 2014 1:32 pm

WingAdmin wrote:The GL1800 does have unified braking, but it is far more complex than the system used in the GL1500.

But no ABS in the GL1500.


Thanks!!
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alancu
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Motorcycle: 1991 gl1500 aspencade

Re: 1991 gl1500 rear brakes

Postby alancu » Fri Oct 31, 2014 10:10 am

update on this problem,, with the bike warming up before a ride the brake pedal gets rock hard and the rear caliper is locked up. any ideas?

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WingAdmin
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Re: 1991 gl1500 rear brakes

Postby WingAdmin » Fri Oct 31, 2014 11:56 am

alancu wrote:update on this problem,, with the bike warming up before a ride the brake pedal gets rock hard and the rear caliper is locked up. any ideas?


The master cylinder return port is blocked.

You warm the bike up, the exhaust gets hot, which heats up the brake fluid in the lines that run next to the exhaust. The brake fluid gets hot and expands, pushing the pistons in the caliper out against the disc, locking the wheel in place.

What *should* be happening:

You warm the bike up, the exhaust gets hot, which heats up the brake fluid in the lines that run next to the exhaust. The brake fluid gets hot and expands, pushing back up through the fluid return port in the master cylinder, and from there into the brake fluid reservoir.

You need to pull the master cylinder and properly clean out that return port.

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redial
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Re: 1991 gl1500 rear brakes

Postby redial » Mon Nov 03, 2014 12:57 am

If there is any water in the brake fluid, that will make it worse, as well. It could be the right time to replace your brake fluid as well, while you are cleaning, as the brake fluid is hygroscopic (attracts water), so that is a good reason to change the brake fluid around every two years - by keeping water out of the system, the metal parts dont rust, and saves on the other maintenance.
Len in Kapunda

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TerryRuth
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Re: 1991 gl1500 rear brakes

Postby TerryRuth » Mon Nov 03, 2014 7:46 pm

OMG..................MASTER CYL is BAD BAD NEWS
Remove ALL trim right side.... so the center 2 lowers... remove footrest right batterey box all heat shields Right exhaust...so floor boards and crash bars .. left muffler.. crossover pot and right muffler together and this is wherre I am now...the heat shield is attached to the voltage reg ???/
there 3 pop rivet marks inside the shield ...does it just pry off??????? got 6 hrs in and no brake cyl YET.............THIS is the worst planning EVER
Terry

alancu
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Re: 1991 gl1500 rear brakes

Postby alancu » Thu Nov 06, 2014 10:53 am

that's what I was thinking based on what I was reading. thanks to all. now how do I get rid of this ad that is on my post?

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redial
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Re: 1991 gl1500 rear brakes

Postby redial » Thu Nov 06, 2014 8:20 pm

If you are referring to the pop-up ads on the messages, that is the way that this site survives. A little annoyance, perhaps, but every time someone goes and visits one of the sites that is providing the ads, a small donation is made to the owner of the facility. All things cost money to provide, and I dont mind the ads, seeing that it provides me with the pleasure of this site, including the people that you come across.
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

rayfie
Posts: 11
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Location: gainesville, ga
Motorcycle: 2001 GL1800A

Re: 1991 gl1500 rear brakes

Postby rayfie » Wed Nov 19, 2014 4:38 pm

Well there one other thing the rubber flex line can get a break in side it like a check valve an the fluid well not return to the master an the brake well stay lock,this one is had to fined so times best of luck.




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