Author Topic: '81 Goldwing Interstate front brake issue  (Read 1116 times)

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Offline DeansZG

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'81 Goldwing Interstate front brake issue
« on: October 01, 2014, 03:41:34 pm »

  Posted this issue on Goldwing docs & Classic Wings.com, but want to see if there's any other surefire solutions to this issue.

 Installed a new front brake master cylinder & can't get a firm brake lever.

  • brake lines seem to be good shape, no leaks & looked to have been replaced in the last 5 yrs. or so.
  • did a bench bleed test on the new m/c & it pumped up nice-n-firm
  • tried mity-vac...no-help
  • tried tying lever to the handlebar overnite w/ rubber band....no help
  • removed one bolt in the wheel caliper brackets & pivoted them so the bleeder screws were pointing upward

any other ideas?
TIA

Offline WillyP

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Re: '81 Goldwing Interstate front brake issue
« Reply #1 on: October 01, 2014, 08:26:21 pm »
Try bleeding at the master, using the banjo bolt. Make sure you are not opening the bleeder, or banjo bolt too soon, or closing it too late. There should be pressure in the line and fluid coming out anytime it is open.

Try again.
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Offline DeansZG

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Re: '81 Goldwing Interstate front brake issue
« Reply #2 on: October 01, 2014, 11:28:07 pm »

   thanks for the reply Willy, but already tried that too, along w/ bleeding all the other banjo fittings :(

  I've even tried leaving the m/c lid off & using c-clamps on both calipers(w/ a helper) to push the fluid & air(hopefully) back into the m/c. No air bubbles & very little improvemnet.
 
   I prolly purged more than a pint's worth of fluid through the front system trying to get her bled.  Next step is to cough up some $$$ & upgrade to the SS Galfer brake lines, a set of fresh pads & the rotors deglazed.

Offline Roger M.

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Re: '81 Goldwing Interstate front brake issue
« Reply #3 on: October 02, 2014, 09:11:29 am »
IMHO, new brake lines are a good next step. Sometimes they look fine on the outside but inside is starting to collapse.


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Offline Wild_Bill

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Re: '81 Goldwing Interstate front brake issue
« Reply #4 on: October 04, 2014, 10:35:02 pm »
Do not allow the lever to contact the grips when bleeding.
I tape a small piece of 1/2" plywood to the grips to make sure the lever is not pulled in too much.

These older Honda's had a tendency to pull in air at the end of the lever travel

Bill
Formerly known as Badnews_Bill

Offline DeansZG

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Re: '81 Goldwing Interstate front brake issue
« Reply #5 on: October 04, 2014, 11:51:43 pm »
Do not allow the lever to contact the grips when bleeding.
I tape a small piece of 1/2" plywood to the grips to make sure the lever is not pulled in too much.

These older Honda's had a tendency to pull in air at the end of the lever travel

Bill

Yep, good point Bill!  I've got a new replacement master cylinder NON OEM, so I'm not sure if it's got the same air bleed issue as the stocker..

Offline AirMonger

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Re: '81 Goldwing Interstate front brake issue
« Reply #6 on: October 05, 2014, 08:10:42 pm »
Try zip tying the brake lever pulled to the grip. Leave it set over night. be sure to turn the wheel all the way to the left leaving the reservoir at its highest possible elevation. You will be surprised. The other thing to look at is if this bike had the earlier linked brake set up. I know the 83-84 models did and that means bleeding the rear as well. 
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Offline DeansZG

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Re: '81 Goldwing Interstate front brake issue
« Reply #7 on: October 05, 2014, 10:42:09 pm »
Try zip tying the brake lever pulled to the grip. Leave it set over night. be sure to turn the wheel all the way to the left leaving the reservoir at its highest possible elevation. You will be surprised. The other thing to look at is if this bike had the earlier linked brake set up. I know the 83-84 models did and that means bleeding the rear as well.

  yep, tried the zip-tie method also Kent, couple of nites as a matter-of-fact.... unlinked brakes, but yes, they did start the linking in '82.
Probably end up w/ dual lines from the master cylinder(one to each caliper) instead of the 3 line oem set up.

Offline AirMonger

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Re: '81 Goldwing Interstate front brake issue
« Reply #8 on: October 06, 2014, 01:14:48 pm »
Well Dean, thats it for my bag of tricks. I replaced the brake lines in my 81 GL1100 as well. The brakes were ok when she was naked but I scored a 83 interstate fairing and tour pack from a guy that stripped or bobbed his Wing. Even the same color. Was I ever happy. The added weight made the stock brakes adequate and that was all. I loved that bike. Seems small compared to the 02 GL I have now. Never thought I would say that about an 1100. Best of luck getting yours sorted out.
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Offline WillyP

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Re: '81 Goldwing Interstate front brake issue
« Reply #9 on: October 06, 2014, 06:14:45 pm »
It could also be because your old lines are getting soft, so they expand a little more with pressure.
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