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Tomnsrowner |
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Tomnsrowner Derestricted Danger
Joined: 08 Dec 2003 Karma :
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mr jamez |
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mr jamez World Chat Champion
Joined: 04 Aug 2003 Karma :
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Posted: 20:36 - 16 Mar 2004 Post subject: |
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I think if you put dot5 in when you were previously using dot4 it can rot the seals etc. I would flush it all out with brake fluid again and bleed the brakes. Perhaps give the calipers a clean out and check that they are working properley e.g. pistons pushing and returning smoothly. However I am not sure if this is normal for NSR brakes as I haven't had a chance to use them yet
What pads did you get? as EBC are apparently the best (I think)
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GFK |
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GFK Scooby Slapper
Joined: 03 Apr 2003 Karma :
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G |
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G The Voice of Reason
Joined: 02 Feb 2002 Karma :
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Posted: 21:21 - 16 Mar 2004 Post subject: |
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Make sure you get the best pads you can, this does seem to make quite a difference.
Personally I'd recommend Carbone Loraine SBK3 for bigger bikes, never tried them on smaller bikes. If not anything sintered is a good start. EBC HH are generally considered to be fairly good.
You do /not/ want DOT5, your brake fluid is not boiling (if it is, then be worried), so this will not offer you any advantage. DOT5 also absorbs water, so needs to be changed more regularly in theory, it also costs loads more.
As stated, DOT 4 and DOT 5 do not mix well, creating a corrosive compound I believe, so best to avoid.
A good clean of the pistons and calipers in general and some copper grease in appropriate places doesn't go amiss either .
Braided hoses are the next thing I'd go for after decent pads.
NSR brakes do seem to be quite variable, so don't expect too much though. |
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Scotty |
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Scotty Scooter Boi
Joined: 31 Jul 2002 Karma :
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Kickstart |
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Kickstart The Oracle
Joined: 04 Feb 2002 Karma :
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Posted: 01:31 - 17 Mar 2004 Post subject: |
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Hi
Rubber hoses in some ways are better than braided steel lines. The steel lines tend to give less feel I find. However rubber hoses to age and then they can get very spongy.
DOT 5 fluid does not absorb water at all. That is the problem with it. Normal DOT 3 or DOT 4 absorbs water like crazy, which means that any water in the system is absorbed by the fluid and flushed out when you bleed the brakes through (and this is why conventional brake fluids need to be bled through on a fairly regular basis). DOT 5 does not mix with the water, so the water tends to settle in areas of the system, boiling nicely when you brake and also causing corrosion.
Also many systems use seals that are not compatible with DOT 5 fluid.
Do not confuse DOT 5 with DOT 5.1. DOT 5.1 is a conventional fluid like DOT 3 or DOT 4. DOT 5 is silicon based.
Given the problems you are having I could firstly check that the pads are clean and that nothing has leaked onto them and contaminated them. After that I would rebleed the system with fresh fluid, and also check that the brake lines are in good condition.
I don't think that EBC do their HH pads for the NSR unfortunatly.
All the best
Keith ____________________ Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing |
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Danny |
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Danny Ask Me About Stoppie School
Joined: 26 Jan 2003 Karma :
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Hex |
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Hex Party Boy
Joined: 04 Feb 2002 Karma :
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Tomnsrowner |
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Tomnsrowner Derestricted Danger
Joined: 08 Dec 2003 Karma :
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Kickstart |
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Kickstart The Oracle
Joined: 04 Feb 2002 Karma :
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Old Thread Alert!
The last post was made 20 years, 58 days ago. Instead of replying here, would creating a new thread be more useful? |
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