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For those of you with crushed oil lines...

I just wanted to share these pictures with all of you. I just finished these up today and so far they are leak free. This really wasn't a hard project. The sections are made of copper pipes and 45 degree elbows. All of it was brazed together with silver solder. Enjoy.



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Old 01-12-2008, 12:57 PM
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will that withstand the pressure without a catastrophic rupture?
Old 01-12-2008, 01:03 PM
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will that withstand the pressure without a catastrophic rupture?
Looks clever enough, but that's a lot of fittings. Why not try and bend some of those? And what copper, K,L or M? I probably would have looked into refrigeration grade or soft (coiled) L.
Old 01-12-2008, 01:10 PM
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Milt, Im not sure on the grade of the copper. I have full confidence in these pipes. We took our time properly applying flux on the pipes and got good contact with the solder. At one point we messed up one of the sections and tried to take is apart. We have to rip apart the copper just to separate the joints. This is some strong stuff. Also we built the sections carefully on a vice before we attached them to the car. It might not be the prettiest of fixes, but it is a heck of a lot better than the stupid rubber hoses that I originally used to temporarily patch that section.
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Old 01-12-2008, 01:22 PM
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I have confidence, too. Just making my usual observation and commentary.
Old 01-12-2008, 01:29 PM
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Quote:
Originally Posted by milt View Post
Looks clever enough, but that's a lot of fittings. Why not try and bend some of those? And what copper, K,L or M? I probably would have looked into refrigeration grade or soft (coiled) L.
For sure with long radius 90's and silver solder..... I think with the vibrations you will develop leaks at your joints and for sure if that copper vibrates and rubs against anything you can expect some leaks.... I hope not, but anyways good luck and I hope it keeps you on the road....
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Old 01-12-2008, 01:31 PM
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Keep the salt off of it.
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Old 01-12-2008, 02:01 PM
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Keep the salt off of it.
Copper is impervious to salt thats why they use it all the time in marine aplications.
I did the same thing with my lines but i didnt need quite as many fittings. It came out good and i havnt had any leaks yet since i did it in september
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Old 01-12-2008, 02:07 PM
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Couple questions BeauBlues. Are these (pipe and solder) the stuffs I can get at Home Depot, which people use on hot water pipe at home? And how long have you have these on?
Thanks.
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Old 01-12-2008, 02:12 PM
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Old 01-12-2008, 02:13 PM
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Couple questions BeauBlues. Are these (pipe and solder) the stuffs I can get at Home Depot, which people use on hot water pipe at home? And how long have you have these on?
Thanks.
This is was made from 3/4" copper pipe and fittings that you can find at any local hardware store. The solder is silver solder. You also want to use flux on every connection. The flux helps the solder fill in all the voids in the joint. I guess you can ask anyone who knows how braze. They could explain in more detail. Oh and I just finished this today. Yes there are a lot of fittings, but let me tell you, each section is rock solid!
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Old 01-12-2008, 07:40 PM
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Copper is impervious to salt thats why they use it all the time in marine aplications.
Are you confusing copper and brass?

The factory oil lines are brass. The problem with copper is it work-hardens with vibration. Over time this can lead to cracks.
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Old 01-12-2008, 07:51 PM
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copper and silicone bronze is high end marine.

and there's plenty of non heavy duty brass around also. It's often plated.
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Old 01-12-2008, 08:51 PM
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Quote:
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. The problem with copper is it work-hardens with vibration. Over time this can lead to cracks.



definitely if it's vibrating imo.
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Old 01-12-2008, 08:53 PM
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Listen to what Chuck said. Over time the copper will "work harden" from vibration as he said. All of a sudden there will be a failure in the copper which could lead to very rapid oil loss. You can try to insulate it from vibration, but I think it will never be successful.
But good luck anyway. It is a good project.
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Old 01-12-2008, 08:59 PM
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exactly, like putting a flexpipe on an exhaust...

Good luck!
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Old 01-13-2008, 05:03 AM
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Quote:
Originally Posted by BeauBlues View Post
I just wanted to share these pictures with all of you. I just finished these up today and so far they are leak free. This really wasn't a hard project. The sections are made of copper pipes and 45 degree elbows. All of it was brazed together with silver solder. Enjoy.
Crush oil lines can be very effectively restored wth pressure from an air compressor and heat from a propane torch. Might want to give that a try before disposing the crushed oil lines in the trash. Andy
Old 01-13-2008, 06:43 AM
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I'll be doing something similar this summer - mine are crushed (just under the jack tube) and the $800 for original parts is not supported by my budget. It's either run hot or splice in some copper (I think I can get away with just a 10" section).

Maybe I'll cover the whole mess with some 7/8 or 1" ID rubber oil line & clamps so if it lets go it's not catastrophic. Maybe cover the line with foam pipe insulation & attach with some grommeted cable clamps - if it sits against the body structure, that should dampen most vibration?

I think Tim Hancock did a similar fix some time ago just using standard solder - I wonder how it's holding up?
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Old 01-13-2008, 06:54 AM
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Why not use Braided Steel Lines? You can buy these actual Braided hoses inexpensively from Summit Racing and the aluminum or steel hose fittings separately and make the actual hoses at home. I do it all the time. Everyone one is now making Braided steel hoses and fittings (Earls \ Holley, Aeroquip, Goodrich, Russel etc) so cost is the lowest it has ever been. You could even go with the cheaper but just as durable Push-Lok rubber hose and run the AN or Metric adapter hose end(s).

The Braided hoses will wear better (designed for this application, much better longevity, flex, high pressure etc etc ) & look better (if that matters, avoid all those fittings \ elbows too).

At minimum I would have sleeved those Copper Lines.

Yasin
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Old 01-13-2008, 07:05 AM
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Why didn't the factory think of that !

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Old 01-13-2008, 07:13 AM
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