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Engine harness repair

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Old Feb 18, 2021 | 03:38 PM
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Engine harness repair

I made this thread to try and get as much info as I can in one place.
​​​​​​​
Jack this one is more your thing as I lost the info you gave on what tapes to use.

 
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Old Feb 18, 2021 | 04:43 PM
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Here are some of the threads where I've talked about it here. I made a full video of retaping my harnesses, boring as hell. The one post has a "trailer" version. Some like to use the fleece tape, I don't like to underhood.

https://www.ford-trucks.com/forums/1...l#post19425019

https://www.ford-trucks.com/forums/1...l#post17733538

https://www.ford-trucks.com/forums/1...l#post15872064

Polyken 277/257, and 268 are the what I most use.,





















 
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Old Feb 18, 2021 | 08:20 PM
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Geezus, reminds me of an Andres Segovia performance I went to years ago. I jumped all over this when I saw the title - I got the harness out of my ambulance and need to put it in my bus. But watching you finesse that tape and harness, Jack...it's like you're The Tape Whisperer. I'm going to look like Lucy working the candy conveyor when I try this. First off, and y'all know it's true, somehow in the process, I'll break the harness, one of the connectors, something. It'll quickly become a case of which harness do I keep and repair?

But, even if it survives unscathed, the whole place will look like the baby's high chair - twisted up pieces of tape stuck everywhere, on the table, in my hair, but some actually on the harness too. Me, wild-eyed and foaming for sure. I can only imagine how many rolls of tape I'll go through. Jack doesn't even have a scrap; it's like the Immaculate Convolution. On the other hand, the forensics decs will tie him to the body, no problem, matching his scissors to each piece of tape, in order, as the crime was committed.

Joking aside, Jack, how many rolls of tape did you use? I didn't see you remove any of the old tape; IIRC, it skips from washing the harness to taping different areas, and it seems like the old tape is still there, right? So, you clean, tape/repair bare spots, then reinforce other spots, then a total wrap? and then a final total wrap? Did you have any problems with it being too thick in places, like the cam/crank sensors, with the extra tape? Or was it not flexible enough? How about all the plastic pieces that attach the harness to the engine? Were they all intact? Did you have to find replacements for some? Figure out where there were any missing, etc.?

It is a massive undertaking on the Eseries, or maybe it seems so to me because I'm dealing with dual alternator/dual AC compressor set-ups. If I was going to take the engine and transmission out after this, it wouldn't be much more work.
 
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Old Feb 18, 2021 | 08:52 PM
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Well, it was a while ago.

I believe two rolls of the high temp. Cleaned, cut off any fray but not original, reinforced any spits, and one overlay. The harness is already quite stiff - it didn't add any stiffness to it. All the original clips and tubing were there. But I am worried that some insulation might have opened due to the handling; it's from 2010.

Back at the farm, I have another main and FICM harness. When I have the time, I will cut open and rewire those, probably with stranded tin-coated copper with TFE as an insulator. With a smidge of extra length in key areas. I may try to do a little better on the shielding if I think it can be separated better. Shielding materials are easy to get; I did that with the instrumentation and when modifying audio speakers or cabling.

I used to reproduce '65-66 Mustang harnesses, and plenty of experience for the 25 years of installing instrumentation in the test vehicles - small shop, all of us did everything. I was better at wire and plumbing.
 
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Old Feb 18, 2021 | 09:48 PM
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I used the TESA heat tape, pretty good stuff!
 
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Old Feb 19, 2021 | 01:49 AM
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Originally Posted by SmackDaddy
I used the TESA heat tape, pretty good stuff!
do you have a product no.?
 
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Old Feb 19, 2021 | 06:07 AM
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With Hartwig asking the question, there is another post somewhere where I had a table of different products. It's a deep rabbit hole within just the two most used companies in the automotive field.

I don't know if Mac used one of these two easy to acquire Tesa offerings.








But Tesa has a lot of them, and there are just the high temp ones.





On the Elliot side, again many tapes, but not the chart I had posted.








This is what the Tesa 51036 tape I have looks like. It's not the look I wanted for my harness. It ain't no friggin Audi.




 
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Old Feb 19, 2021 | 06:36 AM
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51036 is what I used. It is awesome stuff, I use it on boat wiring too.
 
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Old Feb 19, 2021 | 07:32 AM
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It is, just not the look I wanted. Although I had given it some thought.

How has it been with dust holding, Mac?
 
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Old Feb 19, 2021 | 08:03 AM
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thanks, should be the same stuff, that I use,

https://www.kramp.com/shop-de/en/p/f...m--EM2041LT155

(english language version)
 
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Old Feb 19, 2021 | 08:10 AM
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Originally Posted by TooManyToys.
With Hartwig asking the question, there is another post somewhere where I had a table of different products. It's a deep rabbit hole within just the two most used companies in the automotive field.

I don't know if Mac used one of these two easy to acquire Tesa offerings.








But Tesa has a lot of them, and there are just the high temp ones.





On the Elliot side, again many tapes, but not the chart I had posted.








This is what the Tesa 51036 tape I have looks like. It's not the look I wanted for my harness. It ain't no friggin Audi.


That would look good with jeans, boots and a pastel shirt tucked in - hair/beard have to be trimmed though.
 
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Old Feb 19, 2021 | 08:46 AM
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Originally Posted by TooManyToys.
It is, just not the look I wanted. Although I had given it some thought.

How has it been with dust holding, Mac?
It’s slick, nothing really sticks or is attracted to it. I even stuck a piece on my vise and tried to melt it with my torch and it just stuck even better. I don’t care how it looks, I got ten rolls for $40 and it has been awesome. I even wrapped my fuel lines and power steering hoses with it.
 
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