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Old 08-22-2015, 11:47 AM   #1
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Help Please with harness wire

I have a 1975 Barth class C and the harness wire from the rear of the coach to the back of the engine got cut. what are they called ? what does it affect ? and what kind of shop do I take it to to get it fixed? Please help Thanks
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Old 08-22-2015, 12:00 PM   #2
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I have a 1975 Barth class C and the harness wire from the rear of the coach to the back of the engine got cut. what are they called ? what does it affect ? and what kind of shop do I take it to to get it fixed? Please help Thanks

How many wires in the harness pack and what does it connect to on the back of the engine? and can you trace to see where it ends or connects on the back of your coach?

Will your engine run, and have you checked to see if your instrument gauges function and/or your tail, stop signal lights function on the back of your coach.?

If push comes to shove you may be able to reconnect the cut wires with a crimp type wire connectors.

Best of luck and keep us posted...
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Old 08-25-2015, 07:20 PM   #3
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I have been a heavy duty mechanic for 60 years and the last thing I would advise anyone to do is use crimp type connectors on an exposed cable. Have you ever seen the green cancerish rot that gets into wiring when it is exposed to moisture? Once it gets started the whole harness will be junk. However no matter how many wires are in the harness it can be easily and permanently repaired with solder and heat shrink. If you are not comfortable doing this yourself, any good mechanic should be able to help you out,but if he suggests using butt type crimp connectors run away as fast as you can and find someone else.
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Old 08-25-2015, 10:48 PM   #4
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I have been a heavy duty mechanic for 60 years and the last thing I would advise anyone to do is use crimp type connectors on an exposed cable. Have you ever seen the green cancerish rot that gets into wiring when it is exposed to moisture? Once it gets started the whole harness will be junk. However no matter how many wires are in the harness it can be easily and permanently repaired with solder and heat shrink. If you are not comfortable doing this yourself, any good mechanic should be able to help you out,but if he suggests using butt type crimp connectors run away as fast as you can and find someone else.
+1 on solder and shrink wrap. Only type of wiring repair I recommend and teach. Glad to see others know the right way to repair wiring.
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Old 08-26-2015, 06:33 AM   #5
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+1 on solder and shrink wrap. Only type of wiring repair I recommend and teach. Glad to see others know the right way to repair wiring.
Yes ,Yes and YES!!! might take longer but you'll only do it once
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Old 08-26-2015, 12:23 PM   #6
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Concur...however, if the severed wiring harness affects brake lights and turn signals, a crimps or wire nuts would be a short term solution in order to get it to a shop.

If you want to tackle it yourself, you need soldering iron, flux, solder, wire strippers, heat shrink tubing, and a heat gun. All of this can be had for under $50.00 at Harbor Freight.

There are many videos on YouTube that show how to solder wires. Here is an example:
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Old 08-26-2015, 12:32 PM   #7
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X4 on the solder and shrink wrap.
As Charles said quite succinctly
"I do it once and I do it well, and I do it properly"
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Old 08-27-2015, 07:29 PM   #8
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Thank you all for all the information.

Thank you all. It was all very good information and Ill keep you updated when I know. I moved it to another shop this am as the other guy didn't do and would not do the wiring. the place I took it to had a good idea what was going on.There is a lot more to do besides the wiring. Before this I knew little about anything under the hood. It has been a very expensive lesson but I sure know more now The shop I sent it to today makes me already feel better. Again Thank you so much it is deeply appreciated. till we meetagain
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Old 08-28-2015, 09:16 AM   #9
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What it affects can be many things.. Lights and fuel pump are the primaries (if it has an in-tank fuel pump) depending on where cut.
If you clean the wires (if they are dirty) each wire is color coded.

Match the codes Slip some heat shrink over the wires.. Strip (Very little) and solder like colors together (There should only be one of each color/pattern) and insulate with heat shrink..

NOTE: If the wires are in an area where cutting or tearing is a risk slip a length of hose (Plastic or rubber over the entire bundle before splicing, slip a length of IRON PIPE over that, then splice as above, test and if happy slide the hose and iron pipe into position to protect and use pipe hanger to hold it in place.

Why RV makers run wires through wheel wells without that kind of protection I'll never know.
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