Repairing electrical wires outer sheath after small fire

[Chap]

Had an incident on the combine this evening . A small oak branch had landed on top of engine and set fire which in turn set fire to the wiring harness by engine. Luckily we put it out but kept about 12 wires fused together. We pulled them all apart and now need to recover them . Most about 5 inches long where copper only showing . Wires not broken so can’t slip over shrinking tube. Electrical tape just tends to go brittle when hot . What’s best option.? Thanks

 

[principal skinner]

Chop out damaged wire, solder in new with shrink wrap over joints, wrap whole lot in tape.

 

[JWL]

Cut them back a bit further and replace the individual wires with fresh ones

 

[Lincsman]

Had an incident on the combine this evening . A small oak branch had landed on top of engine and set fire which in turn set fire to the wiring harness by engine. Luckily we put it out but kept about 12 wires fused together. We pulled them all apart and now need to recover them . Most about 5 inches long where copper only showing . Wires not broken so can’t slip over shrinking tube. Electrical tape just tends to go brittle when hot . What’s best option.? Thanks

Cut them out one at a time and solder new lengths in adding shrink wrap, cut at different lengths so joins are in different places, then wrap the whole lot with tape.

 

[Goweresque]

Wires not broken so can’t slip over shrinking tube.

Couldn't you just slice a length of shrink tube and slide it over and heat shrink that?

 

[steveR]

Cut them out one at a time and solder new lengths in adding shrink wrap, cut at different lengths so joins are in different places, then wrap the whole lot with tape.

I tend to do this, then a larger shrinkwrap over the lot. Better than tape I find.

 

[Zippy768]

Had an incident on the combine this evening . A small oak branch had landed on top of engine and set fire which in turn set fire to the wiring harness by engine. Luckily we put it out but kept about 12 wires fused together. We pulled them all apart and now need to recover them . Most about 5 inches long where copper only showing . Wires not broken so can’t slip over shrinking tube. Electrical tape just tends to go brittle when hot . What’s best option.? Thanks

We had a fire incident last night. Removed the loom this morning and took to dealer. Half hour and they had it repaired.
Would a stick alone cause a fire??

 

[Steevo]

Would self amalgamating tape do?

 

[ACEngineering]

Couldn't you just slice a length of shrink tube and slide it over and heat shrink that?

Err no that dont work sadly.

 

[startinghandle]

What I was going to suggest has already been mentioned... however you need to check wiring right through for burning also fuses should have blown so could be other problems

 

[Chap]

The copper wires themselves are totally intact hence not wanting to cut them. Looks like I best cut them add new wire and heat shrink the connectors . Got a mechanic coming up this morning to solder and shrink wrap.

What I was going to suggest has already been mentioned... however you need to check wiring right through for burning also fuses should have blown so could be other problems

Taped them up and did a test run last night and all worked ok. Think we were bloody lucky

 

[Dry Rot]

Google "liquid electrical tape"?

 

[ACEngineering]

Google "liquid electrical tape"?

This is good stuff and has its uses but for a bunch of burnt wires the best fix is solder new ones in.

99% sure that liquid tape is just plastidip paint, I got a 250ml pot of it to try when my proper liquid tape runs out.

 

[Chap]

Old wires all cut out . New ones soldered in and shrink wrapped. New plastic conduit. Thanks for advice .