Richard007 Posted February 13, 2022 Report Share Posted February 13, 2022 Has anyone compared Kevlar reinforced hoses against silicon ones? Quote Link to post Share on other sites
Lebro Posted February 13, 2022 Report Share Posted February 13, 2022 I guess the optimum would be kevlar reinforced silicone ? Bob Quote Link to post Share on other sites
RogerH Posted February 14, 2022 Report Share Posted February 14, 2022 The old rubber hoses lasted 40 years The Silicone hoses could last another 50 years. Kevlar re-inforced Silicone would go on forever. Hi Richard, welcome to the forum. Where are you and what car do your drive??? Roger Quote Link to post Share on other sites
FatJon Posted February 14, 2022 Report Share Posted February 14, 2022 I have used them on very high boost turbo hoses but they seem like an expensive overkill for a TR cooling system. As Roger says, rubber last decades, silicone lasts indefinitely, so unless you have an unusual application in terms of pressure or physical punishment (rallying, being hit by rocks and gravel for example) I see little to recommend Kevlar. Kevlar are also rather stiff and it makes them a bit hard to fit. Because they are stiffer they also put more load on the radiator when the engine moves and the chassis flexes so they may actually be counterproductive in this case. Quote Link to post Share on other sites
stuart Posted February 14, 2022 Report Share Posted February 14, 2022 Well its not quite like that. A lot of the rubber hoses around being sold cheaply by some of the suppliers has no re-enforcing inside which means they dont last very long, theyre also made of a similar type of rubber as the ball joint boots that we all know dont last five minutes. The more expensive rubber hoses are fine and will last a fair length of time, The Silicon ones are good though they seem to be mostly in metric sizes which means theyre either a very tight fit or too loose, they also tend to be mostly available in very garish colours. Lastly coming to the Kevlar ones, when they first came out they were very good and were considered to be the best option as most of the rubber ones available at the time were of the unreinforced variety, move on a few years and all of a sudden the Kevlar ones then being sold were starting to fall to bits very rapidly for some unknown reason (probably cheapened the mix to be more profitable) so most of the good suppliers stopped selling them (I believe the situation for them has now been resolved) In short rubber is fine as long as its the re-enforced variety which you should be able to tell by looking at the end of the hose where the re-enforcing layer should be visible. Stuart. Quote Link to post Share on other sites
Andy Moltu Posted February 14, 2022 Report Share Posted February 14, 2022 Personally would go for the silicon ones due to its longevity. (but not as fuel pipe) Regular reinforcement is fine, kevlar is overkill for the loadings in the TR coolant application and again subject to the rubber it is embedded in degenerating. Quote Link to post Share on other sites
iain Posted February 14, 2022 Report Share Posted February 14, 2022 I believe the Kevlar was in little chopped pieces! Of zero use whatsoever. Good quality rubber is the way to go imho. Iain Quote Link to post Share on other sites
JochemsTR Posted February 15, 2022 Report Share Posted February 15, 2022 just curious.....where to buy good quality hoses? I looked at Roose, but the Triumph set he offers, come in 31mm wide hoses. The actual dimension is 28mm. Moss' reinforced silicon hoses are on backorder already for a long time. Quote Link to post Share on other sites
Z320 Posted February 15, 2022 Report Share Posted February 15, 2022 (edited) Hi Jochem, I bought the standard rubber hoses from Bastuck when I got my TR 13 years ago, they are still like new. Why not safe the money for another project? Ciao, Marco Edited February 15, 2022 by Z320 Quote Link to post Share on other sites
DaveR Posted February 15, 2022 Report Share Posted February 15, 2022 I have used both types and in my case the Silicon have outlasted the Kevlar by a wide margin. The rubber, OE, type originally fitted also had outlasted the Kevlar. Dave Quote Link to post Share on other sites
stillp Posted February 15, 2022 Report Share Posted February 15, 2022 Don't silicone hoses tend to slip off? Pete Quote Link to post Share on other sites
stuart Posted February 15, 2022 Report Share Posted February 15, 2022 8 minutes ago, stillp said: Don't silicone hoses tend to slip off? Pete They can be problematical on stainless pipes with no swaged end. Stuart. Quote Link to post Share on other sites
stillp Posted February 15, 2022 Report Share Posted February 15, 2022 Thanks Stuart, I knew I'd read something about it. Pete Quote Link to post Share on other sites
Ian Vincent Posted February 15, 2022 Report Share Posted February 15, 2022 1 hour ago, stuart said: They can be problematical on stainless pipes with no swaged end. Stuart. Agreed. I had to use Wellseal and double jubilee clips to cure slight leaks at each end of the stainless down pipe. Rgds Ian Quote Link to post Share on other sites
Alfrom Posted February 15, 2022 Report Share Posted February 15, 2022 Stuart is absolutely correct (as usual). This has happened to me twice - on the same connection: Top of the metal pipe between the bottom of the radiator and the water pump - on a TR6. This is a quick but messy way of emptying the cooling system. Quote Link to post Share on other sites
iain Posted February 15, 2022 Report Share Posted February 15, 2022 14 hours ago, JochemsTR said: just curious.....where to buy good quality hoses? I looked at Roose, but the Triumph set he offers, come in 31mm wide hoses. The actual dimension is 28mm. Moss' reinforced silicon hoses are on backorder already for a long time. Revington’s…..made in Australia by Mackay. They fit very well and have a 3 year warranty. (Not often you see that…I hadn’t realised.) https://www.revingtontr.com/search.asp?for=rtr1474-2k&cartype=tr3 Iain Quote Link to post Share on other sites
DavidBee Posted February 15, 2022 Report Share Posted February 15, 2022 25 minutes ago, iain said: Revington’s…..made in Australia by Mackay. They fit very well and have a 3 year warranty. (Not often you see that…I hadn’t realised.) https://www.revingtontr.com/search.asp?for=rtr1474-2k&cartype=tr3 Iain Thanks Iain! Very helpful to know. Ciao David Quote Link to post Share on other sites
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