Spongy Brakes


Information and questions on GL1100 Goldwings (1980-1983)
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wiseguysdad
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Spongy Brakes

Postby wiseguysdad » Wed Mar 17, 2010 7:19 am



I have a 80gl1100 and my brakes front and back are spongy. I put new pads on but still the same. I did not see any sign's of leaking. I have read some of the other topics on this site about brakes and i am woundering what you might say to do. Should i rebuild the master cyl. & cal. or just replace the lines?



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WingAdmin
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Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Spongy Brakes

Postby WingAdmin » Wed Mar 17, 2010 8:58 am

While rebuilding the calipers and/or master cylinders is a great idea, and will improve the performance, durability and safety of your braking system, without question the single best thing I did to my brakes was to replace the lines with braided stainless steel lines. They turned the brakes from spongy soft into razor sharp, and gave me much more confidence in the braking capability of my 1100.

wiseguysdad
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Joined: Thu Jul 23, 2009 7:30 am
Location: United States

Re: Spongy Brakes

Postby wiseguysdad » Wed Mar 17, 2010 9:13 am

Thank you for replying. I will try that first.

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gordonv
Posts: 168
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Location: Richmond BC
Motorcycle: 1988 GL1500
1999 GL1500CF
1982 GL1100A

Re: Spongy Brakes

Postby gordonv » Wed Mar 17, 2010 9:02 pm

Actually, lets go back to basics.

Spongy brakes could be air in the line. Bleed them first.

No air in line, brakes still spongy, then how good does your brakes stop you? OK, then all is well.

OK, but would feel better if there was an improvement, then like WingAdmin said, replace the "soft" lines with "firmer" braided lines.

I never noticed if my brakes are spongy or not, but the bike stops well, so I don't care. BUT since I ride 2 up, when ever in the future I do ANYTHING to do with the brake fluid, then I'll replace these lines to the braid ones.

robertdawber
Posts: 285
Joined: Fri Aug 07, 2009 9:24 pm
Location: Eliot, ME
Motorcycle: 1983 GL1100 Interstate

Re: Spongy Brakes

Postby robertdawber » Thu Mar 18, 2010 8:21 pm

WingAdmin wrote:While rebuilding the calipers and/or master cylinders is a great idea, and will improve the performance, durability and safety of your braking system, without question the single best thing I did to my brakes was to replace the lines with braided stainless steel lines. They turned the brakes from spongy soft into razor sharp, and gave me much more confidence in the braking capability of my 1100.

I cannot find these for my 83 Interstate.
ANy ideas on where?
Bob

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WingAdmin
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Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Spongy Brakes

Postby WingAdmin » Thu Mar 18, 2010 8:45 pm

I used Vencowings for my bike. They're a little more expensive than some places you'll find, but they use top-quality hardware, and they are designed specifically for your bike. I was very pleased with mine.

robertdawber
Posts: 285
Joined: Fri Aug 07, 2009 9:24 pm
Location: Eliot, ME
Motorcycle: 1983 GL1100 Interstate

Re: Spongy Brakes

Postby robertdawber » Thu Mar 18, 2010 8:49 pm

WingAdmin wrote:I used Vencowings for my bike. They're a little more expensive than some places you'll find, but they use top-quality hardware, and they are designed specifically for your bike. I was very pleased with mine.

Wow-they are pricey! My issue is the brakes are spongy and I can find no reason except the lines.
I saw one site which will make them for about 80.00. I will try to find that again and post it. Ever know of anyone using a generic set?

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WingAdmin
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Posts: 17045
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Spongy Brakes

Postby WingAdmin » Thu Mar 18, 2010 8:54 pm

I don't know about generic sets, but I do know of people who have had them custom made and are quite happy with them.

idjit
Posts: 63
Joined: Fri Mar 19, 2010 8:49 am
Location: Rusagonis, N.B.
Motorcycle: 1980 GL1100 Interstate

Re: Spongy Brakes

Postby idjit » Sat Mar 20, 2010 6:18 am

I read somewhere about taking out the lower bolt to the fork and loosening the upper and rotating the caliper so that the nipple is straight up and the "pads are still on the rotor!!". Loosen the nipple with pressure on the brake lever and just enough to pop the trapped air out of the rounded part of the unit. Didn't work for me. Any comments?




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