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oily
Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire
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Posted: Sun Nov 14, 2010 11:34 am Post subject: Brembo master cylinders |
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I've always found it to be a right royal pain bleeding Brembo master cylinders. Never have a problem with anything else just Brembo.
Been trying to bleed the clutch on a SB6 with limited success.
Any of you clever guys got any tips to make it easier? |
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zombie
Joined: 10 Feb 2009 Posts: 272 Location: UK
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Posted: Sun Nov 14, 2010 7:02 pm Post subject: |
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Hiya,
my tip to get the last bit of air out (if you are having trouble and it is still spongy), is to tilt the mc up so that the banjo bolt is low and the lever high. This makes sure there are no bubbles lurking by the top banjo bolt.
Cheers
Zombie |
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Brad
Joined: 11 Aug 2010 Posts: 46
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Posted: Mon Nov 15, 2010 1:29 pm Post subject: reverse |
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Try pushing the piston end back in and it may push the air out the top at the banjo.This happens on the Busas I sometimes use a seringe to push it back up. |
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Evilchicken0
Joined: 12 May 2010 Posts: 2996 Location: London
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Posted: Tue Nov 16, 2010 11:37 am Post subject: |
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Never had a problem with it - I just put a bleeding tube on the slave's nipple and pump away because there must be a non return valve in it.
When I've bled in dry systems on brkaes I leave the top off the reservior and move the lever a little, you can see the bubbles in the res - eventually you'll get some feel then bleed it through the slave as normal. _________________ Don't read everything you believe |
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oily
Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire
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Posted: Tue Nov 23, 2010 8:08 pm Post subject: |
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These arrived today........I'm in love
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Evilchicken0
Joined: 12 May 2010 Posts: 2996 Location: London
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Posted: Wed Nov 24, 2010 12:51 am Post subject: |
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um .... actually they were supposed to come to me but the postman got the wrong address ... yours should come next week
I've got a fixed 19x20 billet type on the Bimota _________________ Don't read everything you believe |
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oily
Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire
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Posted: Wed Nov 24, 2010 6:59 am Post subject: |
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Bloody postman, sorry about that. I'll forward them on straight away.............................NOT
I've also got a pair of the billet type and the hardest part is trying to decide which bike gets which pair. Looks like it's gonna be musical master cylinders. Better buy a gallon of DOT4 |
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Evilchicken0
Joined: 12 May 2010 Posts: 2996 Location: London
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Posted: Wed Nov 24, 2010 11:35 am Post subject: |
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I use dot 5.1 _________________ Don't read everything you believe |
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oily
Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire
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Posted: Wed Nov 24, 2010 11:50 am Post subject: |
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As far as I'm aware.......
DOT5.1 has very little advantage over DOT4 and some disadvantages
Fine if your going racing otherwise......
Besides, I'm obviously not minted like you |
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Evilchicken0
Joined: 12 May 2010 Posts: 2996 Location: London
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Posted: Wed Nov 24, 2010 4:17 pm Post subject: |
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I usually buy a litre from a car factors for £10, then I do all the bikes (and a mate's) at the same time once a year _________________ Don't read everything you believe |
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Admin Site Admin
Joined: 22 Oct 2007 Posts: 508 Location: Stafford, UK
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Posted: Tue Dec 14, 2010 5:43 pm Post subject: |
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Hi
DOT 5.1 should be fine.
It is DOT 5 fluid that is silicone based and has a few disadvantages (but the advantage that as it doesn't absorb water like a sponge it doesn't need regular replacement).
All the best
Keith |
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oily
Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire
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Posted: Tue Dec 14, 2010 6:02 pm Post subject: |
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The main disadvantage with DOT5 is it swells the seals in normall systems and renders them useless in no time at all.
Brembo actually warn against using it
I think the main user of DOT5 on production bikes is Hardly Dangerous
(Probably why their brakes don't work) |
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sb6rdaz
Joined: 23 Nov 2010 Posts: 124 Location: Burton-upon-Trent
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Posted: Mon Dec 27, 2010 9:20 pm Post subject: |
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Oily, stick a pair of Goodridge dry-break connectors on both of your bikes, and just buy 1 pair of cylinders, transfer them as you fancy! Saves a fortune on Brembo bling and is a cracking anti-theft device when the clutch and brake cylinders are under your pillow!!!!! |
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oily
Joined: 05 Apr 2008 Posts: 4788 Location: worcestershire
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Posted: Mon Dec 27, 2010 10:05 pm Post subject: |
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Clutch and brake cylinders ARE under my pillow........Haven't fitted them yet.
Don't care about the bikes getting nicked as long as they leave my master cylinders alone
Never come across dry break fittings for brake lines before
Don't forget I'm a backward country boy |
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sb6rdaz
Joined: 23 Nov 2010 Posts: 124 Location: Burton-upon-Trent
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Posted: Wed Dec 29, 2010 10:50 pm Post subject: |
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Brake line dry breaks are the absolute future buddy, and were on most of the BSB paddock this year. Must admit though, they are a leap of faith to have the caliper off and in your hand one minute, join the line the next and be leaning on the lever for all you are worth straight after without the need for bleeding them at all. Proof is in the pudding though, and they work a treat!! Look almost as funky as the master cylinders too!
Enjoy. _________________ It's mine and I'll wash it as fast as I like! |
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