R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 Hard brake line tube nut sizing.

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Old Jul 21, 2020 | 05:09 PM
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Brandin Sharp's Avatar
Brandin Sharp
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Hard brake line tube nut sizing.

So, I know the pre-flared piping has the tube nuts already, but I am creating my own and so those are what I am needing.
Is there a specific part number for these nuts which press the bubble into the intermediate housings (parts 34326757285 and 34326757282)?
They look like they would be generic fittings, but I want to make sure I have the correct sizes and whatnot. People at one shop tell me one thing then something else at another. I even went by a local BMW/MINI specialty shop and they were kinda stumped. So I'm turning to comrades! Many thanks!

 
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Old Jul 24, 2020 | 11:46 AM
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Old Jul 24, 2020 | 12:02 PM
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Brandin Sharp
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Heya mate! I appreciate the reply. I actually ended up finding these fittings at Advance Auto which worked absolutely perfect! I got my line flared, bent (Not perfectly as I didn't have a bending tool), and installed. No leaks and my Jaina has wonderful braking power again!


 
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Old Jul 24, 2020 | 12:10 PM
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Awesome. Those bends look great!
 
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Old Dec 29, 2021 | 12:10 PM
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Warwick Dean's Avatar
Warwick Dean
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Originally Posted by Brandin Sharp
So, I know the pre-flared piping has the tube nuts already, but I am creating my own and so those are what I am needing.
Is there a specific part number for these nuts which press the bubble into the intermediate housings (parts 34326757285 and 34326757282)?
They look like they would be generic fittings, but I want to make sure I have the correct sizes and whatnot. People at one shop tell me one thing then something else at another. I even went by a local BMW/MINI specialty shop and they were kinda stumped. So I'm turning to comrades! Many thanks!
Hey man was it two M12 up front and two M10 for rear? And have to be fully threaded for M10 fittings and part threaded for the M12?
 
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Old Sep 21, 2024 | 06:04 PM
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Originally Posted by Warwick Dean
Hey man was it two M12 up front and two M10 for rear? And have to be fully threaded for M10 fittings and part threaded for the M12?
I just did remove my line last night and I found that the driver side was M12x1 and the rear was M10x1
on the other line at the join was M10x1 and the rear side on passenger side didn’t have time to remove it but I will guess will be another M10x1.
tomorrow I will let you know when I remove the rest of that line.
mine was so rusted that it just broke while removing it
 
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Old Sep 22, 2024 | 07:38 PM
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BMW and Mini used M10 fittings in most cases. Some are M12 - we think that is for assembly. These are all DIN flares. If you go by your vin in realoem.com, you will see cryptic notes next to some of the lines like M10/M12 1366 - a line with an M10 and an M12 fitting that is 1366 millimeters long…. If you go to American Grease Stick - they sell Cuprinol lines - a copper/nickel alloy - much easier to work with.

Be careful- you need to practice, and check your work. Your life and others depend on this.
 
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Old Sep 22, 2024 | 07:52 PM
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Originally Posted by noodlesandsam
BMW and Mini used M10 fittings in most cases. Some are M12 - we think that is for assembly. These are all DIN flares. If you go by your vin in realoem.com, you will see cryptic notes next to some of the lines like M10/M12 1366 - a line with an M10 and an M12 fitting that is 1366 millimeters long…. If you go to American Grease Stick - they sell Cuprinol lines - a copper/nickel alloy - much easier to work with.

Be careful- you need to practice, and check your work. Your life and others depend on this.
yes I will make sure it work properly before I go on the road. Thanks!
 
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