Split brake system


Information and questions on GL1100 Goldwings (1980-1983)
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Bubba54
Posts: 11
Joined: Thu Jun 23, 2011 11:20 pm
Location: Cookeville
Motorcycle: 1982 GL1000 Standard

Split brake system

Post by Bubba54 »



I have a '83 GL1100 aspencade I am working on. I rebuilt the front and rear brake calipers and master cylinders. I used my compressor to bleed the brakes. The front left is working fine. The back brake bleed fine but the front right won't bleed. I understand this year has the split system but I don't know why the front won't bleed. I have a bit of knowledge as I have ridden for 45 years and wrenched many of bikes and have asked a couple of friends but nothing yet. Any clues? Thanks Randy


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argosybob
Posts: 43
Joined: Wed Nov 20, 2013 6:18 am
Location: Middletown, New Jersey
Motorcycle: 1983 GL1100I Interstate, 1983 GL1100A Aspencade, 1982 GL1100 Interstate (project bike) 1985 California Sidecar Wingliner Trailer

Re: Split brake system

Post by argosybob »

Did you purge the line from the proportioning valve to the front? Both of my 83's sat for a long time before I bought them, and both had major crud in the system. You may also want to consider replacing the rubber lines with braided stainless steel Ray Chan makes excellent lines at a good price.
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RBGERSON
Posts: 3233
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: Split brake system

Post by RBGERSON »

Are you sure you cleaned out the return hole in the master.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB
Bubba54
Posts: 11
Joined: Thu Jun 23, 2011 11:20 pm
Location: Cookeville
Motorcycle: 1982 GL1000 Standard

Re: Split brake system

Post by Bubba54 »

Yes I did open the return line. Clean as a whistle.
Last edited by Bubba54 on Wed Aug 23, 2017 8:22 pm, edited 1 time in total.
Bubba54
Posts: 11
Joined: Thu Jun 23, 2011 11:20 pm
Location: Cookeville
Motorcycle: 1982 GL1000 Standard

Re: Split brake system

Post by Bubba54 »

Have not purged the front brake line yet.
Bubba54
Posts: 11
Joined: Thu Jun 23, 2011 11:20 pm
Location: Cookeville
Motorcycle: 1982 GL1000 Standard

Re: Split brake system

Post by Bubba54 »

Took a step back and ordered new braided brake lines for front and back. A lot of good feedback from people who replaced theirs and figured I would skip a few steps and just replace them. Sometimes it is fun trying to find the problem and other times it is a pain in the rear and remove and replace works wonders on your psyche. Will check the proportioning valve and double check the return valves on the M.C. I will check back on progress. Bubba
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argosybob
Posts: 43
Joined: Wed Nov 20, 2013 6:18 am
Location: Middletown, New Jersey
Motorcycle: 1983 GL1100I Interstate, 1983 GL1100A Aspencade, 1982 GL1100 Interstate (project bike) 1985 California Sidecar Wingliner Trailer

Re: Split brake system

Post by argosybob »

Bubba54 wrote: Thu Aug 24, 2017 4:33 pm Took a step back and ordered new braided brake lines for front and back. A lot of good feedback from people who replaced theirs and figured I would skip a few steps and just replace them. Sometimes it is fun trying to find the problem and other times it is a pain in the rear and remove and replace works wonders on your psyche. Will check the proportioning valve and double check the return valves on the M.C. I will check back on progress. Bubba
My Aspencade sat for 15 years when I bought it. When I took off the old brake lines, I couldn't get air through them, much less anything else. The old, crusty fluid competently clogged up the holes in the banjo fittings. It was never in doubt that the lines were going to be replaced, but I had to look as the previous owner complained to me that he couldn't get the brakes bled... DUH!
Bubba54
Posts: 11
Joined: Thu Jun 23, 2011 11:20 pm
Location: Cookeville
Motorcycle: 1982 GL1000 Standard

Re: Split brake system

Post by Bubba54 »

I have put braided brake lines on the bike and rebuilt the calipers. I bought a rebuild kit for the rear M/C and put it together but the c clip won't stay in the groove. It is fine till I hook up the brake pedal and the spring on the pedal pops it out. Any ideas? I don't think any M/Cs are available. The old and the new c clips both pop out. Thanks Randy
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Hoosier Jack
Posts: 419
Joined: Thu Oct 02, 2014 4:21 am
Location: Terre Haute, IN
Motorcycle: 1982 GL1100 Interstate

Re: Split brake system

Post by Hoosier Jack »

I used the master cylinder off a fairly new Yamaha sport bike. Works fine.


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