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**Jasonmc73** · 18-12-20, 11:00 PM

Sounds like great idea to me

**whitso** · 18-12-20, 11:02 PM

To me that seems like a solution looking for a problem. Unless you're using your winch instead of the tyres there shouldn't be any overheating. If you're winch racing then you should be using steel.

I reckon you don't want anything on your dyneema rope to stop it from spooling nice. If your drum is getting hot you must be cooking your clutch, right?

**Two Emms** · 19-12-20, 06:48 AM

Couple of random thoughts

Will the exhaust wrap keep the heat away from the rope? Probably. Is the dissipation of that heat required to prevent cooking stuff (grease?) inside the drum? Maybe. So wrapping the drum and getting it hotter (potentially) inside will do what?

The rope clamps down on the drum as it spools on. What is the slip coefficient ( I made that term up

) of exhaust wrap??

Exhaust wrap often has an adhesive. Will any gasses released by heating exhaust wrap have an adverse effect on dyneema rope. Might do nothing? Might make it sticky? Might (scarily) lower the breaking strain.

Canvas fire hose by comparison would seem pretty inert.

**Disclaimer ** I have very little winch experience

**nj swb** · 19-12-20, 10:00 AM

Fundamentally, I'm with whitso - go easy on your winch, to let heat dissipate.

Having said this, I put a length of yellow sleeve over the end of my rope, to kid myself that it will provide a little heat protection. When the sleeve comes out I know I'm on the last layer, and the sleeve also has a red mark indicating 6 turns left - if that red mark comes out, it's time to re-think.

TwoEmms' comment re: slip coefficient is valid, but if you're leaving a minimum of six layers on the drum then I don't think dyneema on steel vs dyneema on exhaust wrap would make much difference.

The comment re: off-gassing is also something to think about, but again, if you're sensible about winch use, it shouldn't be a problem.

**Dicko1** · 19-12-20, 10:08 AM

I don't see any difference between 4-6 layers of dyneema or exhaust wrap. Both are going to trap heat. Thats why some people who use a winch often have put an inlet and outlet for their compressor to blow cooler air through the winch. Try a wrap or two of fire blanket.. The lower the number of wraps the better pulling power also. I had an 10,000lb Warn winch many years ago that I absolutely flogged! Steel cable and did some serious extractions on several occasions to beat tides. Drum was as hot as but winch survived...only died due to water ingress (Warn were a bugger for this). New winches are mostly waterproof now. As has been said...just go easy on the winch using the Dyneema...So what if it takes an extra 15 mins to get out?

**Jasonmc73** · 19-12-20, 10:58 AM

Originally posted by Dicko1 View Post

I don't see any difference between 4-6 layers of dyneema or exhaust wrap. Both are going to trap heat. Thats why some people who use a winch often have put an inlet and outlet for their compressor to blow cooler air through the winch. Try a wrap or two of fire blanket.. The lower the number of wraps the better pulling power also. I had an 10,000lb Warn winch many years ago that I absolutely flogged! Steel cable and did some serious extractions on several occasions to beat tides. Drum was as hot as but winch survived...only died due to water ingress (Warn were a bugger for this). New winches are mostly waterproof now. As has been said...just go easy on the winch using the Dyneema...So what if it takes an extra 15 mins to get out?

A winch like the below, does it create less heat in the winch drum, with brake not applied directly to drum

Obviously flog the winch or one with small motor doing big job the electric motor itself will create fair bit of heat?

I don't know much about winches & pointers would be appreciated.

CW-12k Carbon 12K 12000lb Electric winch with Silver Black synthetic rope (carbonoffroad.com.au)

**Dicko1** · 19-12-20, 01:15 PM

Dont know about this winch. If I had to get a winch I would go Runva. Plenty have them and all seem pleased (judging by comments on this and other forums). The lighter the better. 10,000lbs is heaps for the Pajero. Dont forget a block pulley either as these can really help.

**Jasonmc73** · 19-12-20, 04:14 PM

Originally posted by Dicko1 View Post

Dont know about this winch. If I had to get a winch I would go Runva. Plenty have them and all seem pleased (judging by comments on this and other forums). The lighter the better. 10,000lbs is heaps for the Pajero. Dont forget a block pulley either as these can really help.

Runva i agree looks the goods.
But i can't find any reason i won't fit Carbon,
Runva is faster pull thats for sure

ECB alloy winch bar with Carbon winch
In lieu of
TJM T13 steel bar & Runva winch
Appears from my studies to be more suitable for a Pajero front end.

**disco stu** · 20-12-20, 10:27 AM

Sorry, been flat out and a bit slow responding here.

My natural thing is just taking it easy and do things slowly, but I've read of people having the bottom layer of rope melted even when doing things slow, and being pricey stuff I figure being careful isn't wasted. There is also the concern if I end up in a position of having to lower myself or others down things, working against the brake (Warn 9000 so brake inside the drum)

Slipperiness wise, dyneema is really slippery stuff, especially on metal, so I can't see anything else effecting that. Valid question/concern though.

I think dyneema is very inert as far as reaction with solvents goes, being polyethylene, but that's another valid concern. I don't think adhesive would be a good idea under the protection wrap as it would have to handle high temps. I guess silicone would be alright, but I wouldn't think any other adhesives under there would be a good idea.

First tick in favour of that winch Jason is that its not Warn!! Not real impressed with the design of the warn that I have for the price they charge for them. For that price I would expect much more waterproof from the factory. I got it for $50 so not complaining, but......

**Jasonmc73** · 20-12-20, 12:48 PM

Originally posted by disco stu View Post

I got it for $50 so not complaining, but......

Your winch is a great winch i would say @ $50

Your idea has no unitended consequences that i can think off, especially if you drum is kept 3/4 wrapped with tight dyneema string, mark the rope & keep some on drum, let us know if you come up with any unintended consequences.

I

**disco stu** · 20-12-20, 03:05 PM

I'll try it out. Got plenty of exhaust wrap here doing nothing so I'll give it a go

On keeping wraps on the drum, I saw a good idea in a video. I'll try and explain it. Before bolting the end onto drum, run it through a short piece of strap with a loop sewed in each end (or similar). Wind rope on until you get to the end of the strap (I guess size it to the right length) then run the free end of rope through the loop, then continue to spool up winch. That loop will stop you pulling off past it, if it makes sense. I thought it was tricky idea

**Two Emms** · 20-12-20, 03:35 PM

That's a great idea!

The only down side is that if the loop is strong enough, when you reach that point it will stop spooling out, change direction on the spool and begin winding in, maybe

**Jasonmc73** · 20-12-20, 04:34 PM

So both the Strap & Dyneema wind on together, then feed the loose strap end through the loop?
Any links?

**disco stu** · 20-12-20, 05:51 PM

Find it again. From about 11 min shows the retainer thing. The earlier part is about splicing
https://youtu.be/Xavi1qzlfAI

My memory had the process a bit wrong, but I would think a few more wraps would be helpful

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