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Old 07-25-2014   #16
witttom
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Re: Bleeding

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Originally Posted by RJH_5150 View Post
If you are running a rubber line it may something to consider.
Steel-braided.
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Old 07-30-2014   #17
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Re: Bleeding

A few days ago, I bought a Brembo rear master cylinder, brake pedal assembly, and steel braided SS brake line, from a low-mileage 2003 Aprilia Tuono. I threw out a low-ball 'Best Offer' on eBay, and the seller accepted. It cost me less than what the rebuild kit costs for the nasty Aprilia/Brembo MC that I have, plus I get the SS line which I figured I could potentially use elsewhere.

It arrived today, and I was pleasantly surprised at the condition. The internals looked like new. I mounted it, discovered that the SS line that came with it (which was shorter than my stock one) had different bends at the ends that allowed me to route it differently. I used it instead. The MC is now the highest point in the system (previously high point was a loop in the brake line). It took me a while to get the push rod adjustment right and a long while to get the majority of the air out of the system. But it looks like it has built up good pressure and working well. I would not have been able to do it without Bubba's vacuum bleeder whatchamacallit. I'm doing the constant-pressure trick (applying brake pressure overnight) and will bleed it again in the morning.

Crossing my fingers that I've got this sorted, but I have high hopes and will know for certain tomorrow. Maybe I'll ride it to CEBN.
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Old 07-31-2014   #18
icantdrive55
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Re: Bleeding

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Originally Posted by witttom View Post
I'm doing the constant-pressure trick (applying brake pressure overnight) and will bleed it again in the morning.
This couldn't hurt, but as I understand this 'fix'.it's mainly a strategy to use on the front brake where there's a greater possibility of having an entrapped air bubble in the brake lines running vertically along the fork legs going to the front calipers. Glad you got 'er running' again.
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Old 07-31-2014   #19
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Re: Bleeding

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Originally Posted by icantdrive55 View Post
This couldn't hurt, but as I understand this 'fix'.it's mainly a strategy to use on the front brake where there's a greater possibility of having an entrapped air bubble in the brake lines running vertically along the fork legs going to the front calipers. Glad you got 'er running' again.
I've never understood why or how this trick works, although I've often had good success with it.
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