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New Brake line leaking?

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Old May 18, 2020 | 08:42 PM
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Default New Brake line leaking?

Replaced all the hard Brake lines and installed new stainless braided lines. I can't seem to get the braided line to the rotor hard lines in the rear to stop leaking. Anyone have some tips or pointers to get them to stop leaking.
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Old May 18, 2020 | 08:47 PM
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tighter...I installed new lines on my Jeep and thought I had them tight enough, they leaked, my buddy came over and showed me I was wrong....tighter is the answer
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Old May 19, 2020 | 10:20 AM
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Are you using stainless steel hard lines? If so, they are more difficult to seal. I lubricate the threads and tighten and loosen the fitting with a line wrench a few times until the fitting seats. If it still leaks, there is a copper insert that you can put on the seat to seal the fitting. Good luck. Jerry
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Old May 19, 2020 | 12:53 PM
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One lesson painfully learned over and over in my lifespan has been that "too much torque is not always the answer".

A lot of auto hardware stores will have the soft copper washers you need. I had to use them on my C3 when I installed the Stainless lines from the hard tubes to the calipers. The kit I purchased included a bag of soft copper washers in the set. You need the washers like the ones used on banjo bolts and they should have them available locally.

Stainless has advantages and disadvantages both. It Does work easier when you use a lubricant. When I replaced the hard lines on my Corvettes I always use the plain steel as they are easier to work with. Stainless is harder to work in tight areas and if you change your brake fluid every five years you will never have a problem. I bought a Phoenix Reverse Bleeder and it helps make the brake fluid changes as painless as changing the oil.

If and when you do buy the stainless lines that connect the Calipers be absolutely sure that they have a D.O.T. Tag or number on them. If they don't have a D.O.T. Tag they are not legal for roads in the United States and if involved in any kind of accident they will be pointed out. The Chinese know what we like and they make copies of everything including brake hoses.

Spend the time and find the hoses made in the United States with the D.O.T. tag on them. I got my set from Classic Tube with the DOT tag. It is amazing how many Corvettes still have their old factory rubber hoses on them. I was not willing to take that chance so I switched my Hoses right after buying my C3. The difference from old factory rubber lines to the S.S. braided lines is amazing, the rubber really does expand and dampen your braking force. For the money it is one of the very best first investments when you buy an older Corvette. In my humble opinion of course...
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Old May 19, 2020 | 12:59 PM
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Copper brake-line washers are for front calipers only.
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Old May 19, 2020 | 01:26 PM
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The copper insert I was referring to is a very small insert placed on the seat of either the caliper or the seat of the flexible brake line. They are meant to seal a somewhat deformed connection. between the two seats. Jerry
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