Hayes Nine Leak

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Hayes Nine Leak
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flag cooch
Posted: Jun 29, 2008 at 15:12 Quote
Hey i have hayes nine breaks and the front breaks are squeaking every time i tried to use them so i took a look at it, and it seems to be leaking oil... how bad of a problem is this?

Is it an easy fix, or do i need to get it looked at?

Any pointers or info would be greatly appreciated.

Thanks, Cooch
flag Hummeroid
Posted: Jun 29, 2008 at 21:27 Quote
Gotta find out exactly where its leaking from. This is definitely something that needs to look at, as you could lose ALL braking power instead of just have a little leak.
flag cooch
Posted: Jun 29, 2008 at 22:32 Quote
Also the bike had been sitting for a long time without any rides, i read somewhere that after long periods of not using these breaks they may leak upon use ? is this true and if so could that be the case?

thanks.
flag cruisin
Posted: Jul 2, 2008 at 12:50 Quote
It could be the O-Ring that is inside in between the caliper, squeeze the lever an look around the caliper to see if the fluid is coming out betweeen the two parts of the caliper if it is then u jus need to replave the O-ring which is nothin hard or expensive.
flag ryan1212
Posted: Jul 2, 2008 at 13:00 Quote
does it sound like a squealing pig when you use it? cause mines like this on the rear, my front is perfect tho
flag jonbikes
Posted: Jul 2, 2008 at 13:17 Quote
cruisin wrote:
It could be the O-Ring that is inside in between the caliper, squeeze the lever an look around the caliper to see if the fluid is coming out betweeen the two parts of the caliper if it is then u jus need to replave the O-ring which is nothin hard or expensive.

Replacing the seal in a caliper is not expensive, but it is a job and a half. You have to take the calliper apart, assuming it is a two piece, which I believe all hayes nines are, remove the pistons, take out the old seals, put new ones in and get pistons back in place. Puting the pistons in while keeping seals where they need to be is the tricky part. After that, you need to re bleed the system.

Expensive, no, about 15 bucks per side if you want the piston as well, I think the seal might be 5 alone, but you can't just use any old O ring, must be correct seal.

Nothing hard, not so much. It is a hell of a job because its so finicky, but other than that, it's not to bad.
flag Borgschulze
Posted: Jul 2, 2008 at 13:19 Quote
Shouldn't cost you anything.

The good people at Hayes will mail you new parts free of charge.
flag jonbikes
Posted: Jul 2, 2008 at 13:20 Quote
Borgschulze wrote:
Shouldn't cost you anything.

The good people at Hayes will mail you new parts free of charge.

Or you could try that approach. I wouldn't get your hopes up, but even if they won't send them to you for free, its nickles and dimes to do it when compared to most other repairs.
flag Borgschulze
Posted: Jul 2, 2008 at 13:21 Quote
They mail me stuff for free, maybe I'm special.
flag jonbikes
Posted: Jul 2, 2008 at 13:50 Quote
Borgschulze wrote:
They mail me stuff for free, maybe I'm special.

Send some to meEek
flag Borgschulze
Posted: Jul 2, 2008 at 14:44 Quote
E-Mail them yourself Razz
flag freeride5
Posted: Jul 2, 2008 at 17:35 Quote
u can get the o ring that fits between the two halves for five cents at home depot
but that doesnt alsway fix it becasue piston leak to. mine was so bad i would j-hop and the bending of the hose would squeuze all the fluid out so i coud get like two stops
flag cooch
Posted: Jul 5, 2008 at 23:45 Quote
So now my rear break is also squealing like a pig, it still works fine and doesn't seem to be leaking at all, but i can't seem to figure out how to fix the problem. I have played with the adjustments just a little bit while on the trail today, but nothing seemed to help. Anyone have an suggestions on what i can do to fix this?

Thanks, Cooch
flag jonbikes
Posted: Jul 6, 2008 at 7:31 Quote
Time for new pads. They are either worn out, or glazed. If you find you are letting the brake slip (holding it on for long periods of time, without much pressure) the pads will become very hot, turning the surface hard and shiny. This will result in horrid noise, and often, a loss in power.

It probably wouldn't hurt to get the LBS to look at the brakes, and replace pads and rotors. It gets expensive, but brakes are one of the few things that really should NOT be taken for granted and overlooked.
flag cooch
Posted: Jul 8, 2008 at 14:29 Quote
I will take a picture if nobody can answer this from description, but what is the black circle piece within the hayes nine brake. It is located directly behind the brake pads and is the piece that is moved by oil and actually forces the pads to squeeze the rotor. ( i think) i was dissembling my breaks and this piece seemed to me stuck in out outward position (not allowing enough space for the rotor to fit) so i gently pushed it back into place, obviously forcing brake fluid to squirt out. Now it seems that my breaks will not squeeze down and i am wondering if it is due to the loss of break fluid or did i do something stupid in push the piece back? Also i was going to try and add fluid but the reservoir on the lever was full already.

1. If this makes no sense i'm sorry, i just don't want to leave out details incase the problem is not in the brakes, but in something i did.

2. Do i need to bleed my breaks in order to add fluid? or can i just add it? Sorry ik that might sound stupid but this is my first set of hydrolic brakes.

3. if anyone has and idea what i was saying and could help me out that would be awesome. if not i guess i would have to visit the lbs.

Thanks, Cooch
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