Front Brakes


Information and questions on GL1100 Goldwings (1980-1983)
  • Sponsored Links
Buckaroo
Posts: 5
Joined: Wed May 11, 2011 6:57 pm
Location: Cocoa,Fl.
Motorcycle: 1980 gl 1100I Interstate

Front Brakes

Postby Buckaroo » Sun May 15, 2011 2:31 pm



Hi I am a newbie so please bare with me. I have an 80 gl 1100 and it sat for a few years. I have it running [ kind of rough]. I have replaced starter,choke cable, throttle cables, wheel bearings, gas tank,front brake master cyclinder,fuel filter ,fuel pump,rebuilt all three brake calipers and rear master cyclinder. Rear brakes are working. Front brakes do not like me. I cannot get fluid to leave the master cyclinder. I have tried vacuum bleeding, pumping up and bleeding the nipple. When I disconnect brake line at cyclinder and hole my thumb over it and pump I get brake fluid out when I remove thumb. I took apart and blew out lines When I put line from bleeder valve in a glass of brake fluid the fluid will rise about an inch and stop. I am going to change brake lines next I guess. any ideas??



User avatar
eklimek
Posts: 307
Joined: Tue Feb 15, 2011 1:55 pm
Location: St Catharines Ontario Canada
Motorcycle: 81 GL1100 (Widowmaker not in service), 83GL1100, CB350f x 6, CB400f x2, CB550f sold, CL350 (seized engine), plus enough donors to take me through retirement.

Re: Front Brakes

Postby eklimek » Sun May 15, 2011 3:34 pm

Seems a common problem with variation found in various threads. If fluid gets to calipers insufficient pressure is problem.

see -

"Brakes still out"
"Front brake power"

Master cylinder seal, seal orientation or cylinder wall finish are likely culprits. Now that you've been there, redo should go quickly. Please let us know if lines are the problem.

Buckaroo
Posts: 5
Joined: Wed May 11, 2011 6:57 pm
Location: Cocoa,Fl.
Motorcycle: 1980 gl 1100I Interstate

Re: Front Brakes

Postby Buckaroo » Sun May 15, 2011 7:14 pm

Its a brand new master cyclinder

User avatar
eklimek
Posts: 307
Joined: Tue Feb 15, 2011 1:55 pm
Location: St Catharines Ontario Canada
Motorcycle: 81 GL1100 (Widowmaker not in service), 83GL1100, CB350f x 6, CB400f x2, CB550f sold, CL350 (seized engine), plus enough donors to take me through retirement.

Re: Front Brakes

Postby eklimek » Sun May 15, 2011 8:32 pm

"I can not get fluid to leave the master cylinder"

Test the master cylinder by inserting a metric cap screw of same thread as the banjo bolt. If obviously firm, then the lines may be obstructed.

Buckaroo
Posts: 5
Joined: Wed May 11, 2011 6:57 pm
Location: Cocoa,Fl.
Motorcycle: 1980 gl 1100I Interstate

Re: Front Brakes

Postby Buckaroo » Mon May 16, 2011 7:52 am

Thanks that is my next step

Buckaroo
Posts: 5
Joined: Wed May 11, 2011 6:57 pm
Location: Cocoa,Fl.
Motorcycle: 1980 gl 1100I Interstate

Re: Front Brakes

Postby Buckaroo » Mon May 16, 2011 11:00 am

Don't ask me what happen but today I have brakes. I think the brake god took mercy on me and all my suffering. Something happen over night and I have no idea how or what. Anyway thanks for your help

User avatar
eklimek
Posts: 307
Joined: Tue Feb 15, 2011 1:55 pm
Location: St Catharines Ontario Canada
Motorcycle: 81 GL1100 (Widowmaker not in service), 83GL1100, CB350f x 6, CB400f x2, CB550f sold, CL350 (seized engine), plus enough donors to take me through retirement.

Re: Front Brakes

Postby eklimek » Mon May 16, 2011 11:47 am

To get out of jury duty the approriate response is "Nothing ever just happens. There is always a reason."

I suggest the seal swelled.

Buckaroo
Posts: 5
Joined: Wed May 11, 2011 6:57 pm
Location: Cocoa,Fl.
Motorcycle: 1980 gl 1100I Interstate

Re: Front Brakes

Postby Buckaroo » Mon May 16, 2011 12:32 pm

You are more in likely right. Anyway I put three new speed bleeders on it and bled it again. No bubbles and nice clean brake fluid and brakes feel good. All I have now is to get these carbs working right. Thanks again.

User avatar
WingAdmin
Site Admin
Posts: 17050
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: Front Brakes

Postby WingAdmin » Mon May 16, 2011 9:34 pm

Sometimes a bubble of air gets stuck in there somewhere, and overnight it will make its way up to the master cylinder. That's why holding the brake lever on with a bungee all night can help - it compresses the bubbles and makes it easier for them to migrate upward.




Return to “GL1100 Information & Questions”




Who is online

Users browsing this forum: Johnyy Smoke and 1 guest