Bleeding Bloody Bleeding Brakes

[gwigs]

Turned out I had some light pitting on on the of the pistons,I have ordered new ones from the States but they are back order from Japan
So I,m still waitng for them to be sent.Really annoying as I have painted the bike and fixed all its faults but with no brakes all I can do is wait.

[Premature Accelerato]

Any up date on this problem so far, did the new parts solve the problem. Am experiencing a similar problem with six pot calipers on the gisxer.

[gwigs]

Still waiting for my new pistons....four fucking months and the bastards wont even reply to my emails...
I,m getting to the stage of joining every biker forum I can and slagging them off...
Four months in this day and age...

[Laava]

I assume you have paid for them? Can you get your money back?
Surely they are avail from elsewhere? Wemoto.com?
http://www.partsnmore.com/parts/suzu...ting%5D=custom these guys have them listed at $23ea. But is this who you ordered from?
Have you priced up getting them made at a hydraulics shop? Might be the go esp if you have eight to replace?

[gwigs]

I assume you have paid for them? Can you get your money back?
Surely they are avail from elsewhere? Wemoto.com?

Yeah they,re all paid for but its hard to get my noney back when they dont reply to emails...besides havent got any more money to
buy them elsewhere...I have spent nearly a grand on parts with this outfit before and have had no probs till now..

[Laava]

Bummer, hope it works out real soon dude.
Worth a phone call?

[gwigs]

Bummer, hope it works out real soon dude.
Worth a phone call?

Yeah you,re right might have to do that..

[Premature Accelerato]

Four months, you could have hand made the bits yourself in that time. So, was the diagnosis that air was getting in around the pitting even though you were not appearing to loose brake fluid. On my gixser. after having bleed the brakes, after about 40 laps of Manfeild, my brake lever is touching the bars. Re bleed and start again. And again. And again.

[gwigs]

Four months, you could have hand made the bits yourself in that time. So, was the diagnosis that air was getting in around the pitting even though you were not appearing to loose brake fluid. On my gixser. after having bleed the brakes, after about 40 laps of Manfeild, my brake lever is touching the bars. Re bleed and start again. And again. And again.

Been there done that trust me I know it was a pitted piston...used a vacuum bleeder on it ..pointed to the exact piston , though other pistons had minor pittting..only 2 pistons per calliper each with its own bleeder wasnt hard to pin point it...one piston with pitting in line with seals..

[imdying]

It's not leaking air in past pits on a piston

[pete376403]

Seems odd that atmospheric pressure air can get in but hydraulic fluid at far greater pressure doesn't get out.

[gammaguy]

Air is less dense than hydraulic fluid

[Premature Accelerato]

I want to have a go at checking the integrity of my seals and pistons. Has anyone tried removing a caliper, modifying a bleed nipple to accommodate an air line and then pressurising the caliper (with packers to simulate the thickness of pads and rotor in place) while submersing the whole thing in water. Any ideas as to the air pressure that would need to be used?

[Drew]

I want to have a go at checking the integrity of my seals and pistons. Has anyone tried removing a caliper, modifying a bleed nipple to accommodate an air line and then pressurising the caliper (with packers to simulate the thickness of pads and rotor in place) while submersing the whole thing in water. Any ideas as to the air pressure that would need to be used?

To what end? If fluid doesn't come out of there, they seal fine when pressurised on the inside.

Air getting into the system will be happening when the lever is released, and there less resistance for air to go past the seals, than the pistons pulling back.

[imdying]

I want to have a go at checking the integrity of my seals and pistons. Has anyone tried removing a caliper, modifying a bleed nipple to accommodate an air line and then pressurising the caliper (with packers to simulate the thickness of pads and rotor in place) while submersing the whole thing in water. Any ideas as to the air pressure that would need to be used?

Yes, and we use around 4500psi. Waste of time though... if fluid doesn't leak out, then it's fine.