85 GL1200A: Front brake bleeding problem - Page 3 - Steve Saunders Goldwing Forums

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post #21 of 23 (permalink) Old 09-29-2016, 02:15 AM
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Originally Posted by Ken Bergen View Post
Air doesn't hide, it goes to the highest point.
Perhaps why the bleed screws are there?
It would be so lovely if you could just bleed at the screw without doing anything and get consistent results, but for some reason the 1200s can be weirdly challenging, which is why the web is full of so many reports of people rotating the caliper a bit, clamping the pads back, and doing a little voodoo dance to help things along. Looking at the inside of the caliper, it is actually possible for little bubbles of air to get trapped in the piston chambers when they're extended and the caliper isn't at the perfect angle to get the bubbles to rise through that single little channel. Dunno, maybe it's an old wive's tale - but I've had to flush the brake system a few times in the last week and thus had a chance to experiment with a few styles of bleeding. Placebo or not, feels like I got better results with the clamps on.
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post #22 of 23 (permalink) Old 09-29-2016, 05:26 AM
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Originally Posted by eskachig View Post
It would be so lovely if you could just bleed at the screw without doing anything and get consistent results, but for some reason the 1200s can be weirdly challenging,
Anything with lines going that far vertically can be difficult sometimes. If you just turn the wheel so the caliper you are bleeding is forward it helps, i.e. turn the wheel right to bleed the left caliper.

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post #23 of 23 (permalink) Old 09-29-2016, 11:59 AM Thread Starter
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Model: 82 GL1100-I PA/85 GL1200-A ID
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Originally Posted by DaveO430 View Post
Anything with lines going that far vertically can be difficult sometimes. If you just turn the wheel so the caliper you are bleeding is forward it helps, i.e. turn the wheel right to bleed the left caliper.

Thanks, Dave. I'm bleeding all the brake lines on my 82 1100 today, and I'll try that.

Pete

82 GL1100-I -- PA
85 GL1200-A -- ID
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