 Stainless Steel Brake Line Torque |
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| bkrantz |
 Jan 31 2022, 09:59 PM
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#1
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914 Guru  Group: Members Posts: 8,466 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains 
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After filling my brake system with all new components and stainless hard lines, I found several leaking connections. When I installed all the lines I made up the connections as tight as I normally would. Do the stainless lines, and flared ends, need more torque to seat and seal?
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| mepstein |
Jan 31 2022, 10:55 PM
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#2
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914-6 GT in waiting Group: Members Posts: 19,991 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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yes, ss is harder than the stock lines and doesn't crush to shape as easily. Eric Shea might have some comments or tricks to help you.
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| bkrantz |
Feb 2 2022, 09:13 PM
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#3
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914 Guru Group: Members Posts: 8,466 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains
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According to some online sources, a good way to get the stainless lines to seat properly is to cycle tight-loose 5 or 6 times, and then tighten. That is supposed to assist seating by progressive deformation of the flare.
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| fixer34 |
Feb 3 2022, 07:52 AM
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#4
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Senior Member Group: Members Posts: 1,311 Joined: 16-September 14 From: Chicago area Member No.: 17,908 Region Association: Upper MidWest
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I got some stainless lines from PMB and had the same problem. Finally sent them back and got the regular steel. They told me the same thing (afterwards...); you have to really tighten down hard to seat the flare.
I also found the SS lines were much harder to make minor bend adjustments when installing. In the end, staying with the factory steel was just easier. |
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| VaccaRabite |
Feb 3 2022, 07:07 PM
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#5
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En Garde! Group: Admin Posts: 13,765 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region
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This is why I like the nicklecopper brake lines. It bends easy, and it really takes that flare and seals up great.
Zach |
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