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Brake Lines Thread


LUIS COLCHETE

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He is wanting to verify what NPT thread it is from factory so he can match it. So he can connect back up to the pressure safety valve body on the firewall I believe. 

 

1/8-27 or 1/4-18 NPT. 

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He's somewhere in Europe I believe. I don't know that npt is too common where he is.

 

Luis, can you post pictures of the parts you are trying to connect?

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Definitely not National Pipe Thread.  About 99% sure they are 10mm fine thread.  I'm out of town and can't check right now, but I would guess they are 1.25 or 1.50 thread pitch.  

 

Exactly why he was asking. Thank you. this helps a ton.

 

Usually hydraulic lines use a wedge shape fitting like NPT. 

 

Japanese is 10mm x 1  IT 

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Yes, 10mm, but hard to tell the pitch from a picture, but 1mm is common.

Spend $3 on a thread pitch gauge, and another $25 on a cheap dial caliper, and all your questions like this, and in the future will be answered.

 

 The adaptors on eBay-USA.

http://www.ebay.com/itm/282137651495?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

But Wilwood would probably have them also.

 

s-l500.jpg

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I looked and could not find the right adapter you need.Here is my suggestion.

I am assuming your fittings are inverted flare rather than bubble flare.

 

option 1.

28 inch -3 AN line. approx 70 cm.

https://www.summitracing.com/parts/ear-63010128erl

 

3/8-24 inverted flare to -3 AN adapter for master cylinder side.

https://www.summitracing.com/parts/ear-581533erl

 

10mmx1.0 inverted flare to -3 AN adapter for distribution block.

https://www.summitracing.com/parts/ear-592032erl

 

option 2.

Get a 3/16 inverted flare nut (3/8-24 thread) and double flare to your existing line.

 https://www.summitracing.com/parts/sum-220137/overview/

 

option 3.

3/16 inverted flare female (3/8-24 thread) to 10x1.0 male inverted flare adapter.

https://www.summitracing.com/parts/edd-270300

 

use with 30 inch 3/16 brake line.

https://www.amazon.com/Tomkins-330ST-Edelmann-Brake-Line/dp/B0012ORBO6

 with this setup the existing nut on the new line will fit the wilwood master and the adapter will go

into your distribution block.

 

Hope this helps.

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