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PostPosted: Mon Jun 11, 2012 10:11 pm 
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Joined: Tue Sep 21, 2010 8:08 pm
Posts: 1939
Location: East Lothian
Mindmap3 wrote:
I may have a spare bleed connection - I'll have a look in the man cave and let you know.


That would be great thanks.

Are you sure the pistons are ceramic - mine look like they're plastic?


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PostPosted: Mon Jun 11, 2012 11:30 pm 
Gold Trader / rb Rider / Special
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Joined: Mon Aug 31, 2009 12:26 am
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Location: Rurally close.
Yeah theyre ceramic, i have had to break a couple out before.


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PostPosted: Tue Jun 12, 2012 10:03 pm 
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Location: Staffordshire
Bullpup wrote:
Mindmap3 wrote:
I may have a spare bleed connection - I'll have a look in the man cave and let you know.


That would be great thanks.

Are you sure the pistons are ceramic - mine look like they're plastic?


Hi mate, not got the bleed adapter anymore. I was sure I would have put it somewhere safe as I tend to hang onto stuff like that. I think you can buy them individually from CRC. I use an olive from a Mag brake to make sure the rubber hose doesn't POP off the bleed nipple.

Pistons are defo ceramic for better heat dissipation.


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PostPosted: Tue Jun 12, 2012 11:10 pm 
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Joined: Wed Jan 18, 2012 12:37 pm
Posts: 426
Location: Derby
The problem i used to always have with Hayes 9s was the seal on the resivor cap failing which allowed air to be drawn into them.

bleeding wise i just used a big syringe and a bit of plastic tube. Just turned the lever vertical, took off the cap and pumped a load of wilkos finest fit 4 fluid through the system till all the air bubbles stopped coming through. Not the.official method butt worked fine for me.

Pad wise i.can't fault the superstar sintered pads.


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PostPosted: Fri Jun 15, 2012 9:53 am 
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Location: East Lothian
Thank you all for the advice.


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PostPosted: Fri Jun 15, 2012 12:18 pm 
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Posts: 1939
Location: East Lothian
Mindmap3 wrote:
Bullpup wrote:
Mindmap3 wrote:
I may have a spare bleed connection - I'll have a look in the man cave and let you know.


That would be great thanks.

Are you sure the pistons are ceramic - mine look like they're plastic?


Hi mate, not got the bleed adapter anymore. I was sure I would have put it somewhere safe as I tend to hang onto stuff like that. I think you can buy them individually from CRC. I use an olive from a Mag brake to make sure the rubber hose doesn't POP off the bleed nipple.

Pistons are defo ceramic for better heat dissipation.


Thanks very much for looking


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PostPosted: Fri Jun 15, 2012 3:07 pm 
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Location: uk
Sell them at a profit and get better brakes ! As an ex mechanic i hate Hayes, but when they are not playing up they work well.

My advice for any caliper with un equal firing pistons is, take the pistons out, new seals and plenty of silicon (not the DIY stuff) silicon liquid around the seals.


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PostPosted: Fri Jun 15, 2012 3:15 pm 
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Location: East Lothian
greenstiles wrote:
Sell them at a profit and get better brakes ! As an ex mechanic i hate Hayes, but when they are not playing up they work well.

My advice for any caliper with un equal firing pistons is, take the pistons out, new seals and plenty of silicon (not the DIY stuff) silicon liquid around the seals.


Thanks - looks like great advice.

How do you get a stuck piston out without compressed air?


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PostPosted: Fri Jun 15, 2012 3:19 pm 
Old School Grand Master
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Location: uk
send me some pics with out pads in and i'll tell you how. Or take them to a friendly car garage.


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PostPosted: Fri Jun 15, 2012 3:25 pm 
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Location: East Lothian
Thanks - I will try the garage first.


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