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Re: Kutter's bike: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 1:36 pm
by Jean
As you can all see from Kutter's before and after pictures, If you use DOT 5 in a DOT 3-4 system, the whole bike will disolve.

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 5:04 pm
by 2valve
hi ME 109 , thats doesnt look very pretty and it does look very expensive to repair . good talking peice when mates drop around that havnt seen it before .

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 5:19 pm
by kutter
Top Triple Clamp is from San Jose BMW,
CC Products. (www.sjbmw.com)

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 6:37 pm
by Major Softie
Is that triple clamp DOT-5 compatible?

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 6:51 pm
by Zombie Master
hal wrote:Am I wrong or could the mixing of dot 5 and "proper" stuff be catastrofical. Say if there's some leftovers of 5 in the system after a change and you fill up with 4 or 5.1..
Or is it the plain 5.0 that can ruin thiongs and make them swell?

I think Me109 would be the expert on this.

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 7:41 pm
by ME 109
Zombie Master wrote:
hal wrote:Am I wrong or could the mixing of dot 5 and "proper" stuff be catastrofical. Say if there's some leftovers of 5 in the system after a change and you fill up with 4 or 5.1..
Or is it the plain 5.0 that can ruin thiongs and make them swell?

I think Me109 would be the expert on this.
Ahem, thank you ZM.

I think the best way to resolve this issue is to look at it mathematically.
If we subtract Dot4 from Dot 5.1 we get 1.1. That's 1 (point)1. Not to be confused with Dot 1.1 because that was superseded by Dot 1.2 in 1922.
So with the resultant 1.1, we add that to Dot 3 because they are compatible, and we end up with Dot 4.1 which we can see is a full Dot below Dot 5.1 which could become very confusing.
So, we round down the Dot 4.1 to Dot 4 and keep an eye (or two) out for leaks.

Problem solved.

Edit, I thought it appropriate to point out that I can't see how thoings can be ruined, and swell at the same time.
Use Dot 4 and things will be swell.

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 7:50 pm
by Major Softie
ME 109 wrote:
Edit, I thought it appropriate to point out that I can't see how things can be ruined, and swell at the same time.
Use Dot 4 and things will be swell.
I thought it was was DOT 5 that would make everything swell.

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 8:01 pm
by ME 109
Major Softie wrote:
ME 109 wrote:
Edit, I thought it appropriate to point out that I can't see how things can be ruined, and swell at the same time.
Use Dot 4 and things will be swell.
I thought it was was DOT 5 that would make everything swell.
That was an intentional swelling mistake Major.

Re: DOT 3 vs. DOT 5

Posted: Tue Oct 30, 2012 10:19 pm
by Major Softie
That's just swell.

Re: DOT 3 vs. DOT 5

Posted: Wed Oct 31, 2012 1:22 am
by ME 109
Major Softie wrote:That's just as well.
Please, allow me. :mrgreen: