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amondeggs



Member Since: 06 Mar 2011
Location: Telford
Posts: 452

United Kingdom 1999 Defender 90 Td5 HT Woodcote Green
Rubber or silicone coolant hoses????
In process of changing my engine and old hoses have seen better days,

Will either buy new black rubber hoses or silicone ones

Not sure if there is any advantage to silicone over rubber??

Any opinions out there??

Thanks in advance Thumbs Up
Post #360199 25th Sep 2014 10:04pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6264

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
I'd be interested to know too.

I suspect it's a case of they look pretty and are longer lasting / stronger?
Post #360204 25th Sep 2014 10:21pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
silicone are better , stronger but more expensive , but depends if your happy with how long the rubber ones have lasted
Post #360205 25th Sep 2014 10:21pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
I think there is a potential drawback with silicone hoses - they can leak/work loose after a relatively short period of time as they may need the clips re-tightening. Not sure of the technical reasons for this but it's happened twice to me and in mentioning it to others, a number of people have said the same.
Post #360329 26th Sep 2014 5:48pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Rolling Eyes another thing to check... Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #360342 26th Sep 2014 6:28pm
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martinfiattech



Member Since: 13 Nov 2013
Location: leicester
Posts: 422

England 
We fit a few silicone hoses on motorhome induction systems ( who would have thought they would go mad for blue hoses).

You may need stronger / stainless steel jubilee clips, or just use two clips per end. As the hose is stronger the clamping force required is greater.
My self I don`t think most of would feel the benefit unless your really going all out or want to impress the boy racers at a Mc Donalds car show. Excuse the spelling I`am better with spanners and wires.
Post #360395 26th Sep 2014 9:55pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
if I was in need of replacing a few hoses , I would go the silicone route ( would have to be black ) , but like its been said you really need better hose clips even proper jubilee clips would be ok I think , also with silicone hoses I've found tighten them leave for half hour then tighten again
Post #360399 26th Sep 2014 10:02pm
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shaggydog



Member Since: 12 Aug 2012
Location: Kent
Posts: 3346

United Kingdom 1991 Defender 110 200 Tdi USW Arles Blue
I have recently replaced my intercooler hoses with silicone ones.

I went for Terrafirma black ones as they were a good £100 cheaper than using new genuine ones.

Secret with getting silicone hoses to stay put is to use some emery paper to gently rough up the inside of the hose on the first inch or so deep so that it has a dull face. This allows it to grip better than if its a shiny face.

Did mine a few months back and still in exact same place I put them
Post #360401 26th Sep 2014 10:10pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
I too wrestled with silicone hoses when intercooler upgrading. I fitted stainless pipes with silicone end adaptors and didn't have much room as a result. I spent absolutely ages trying various methods to get them to fit including, heat application, emery/sandpaper, washing up liquid to name a few.
Finally got them to fit, hands cut to shreds went in for a coffee break and returned..........

.....just to find the b45t4rds had popped off again..... Rolling with laughter

Funny now looking back but at the time it became a battle of wits and wills......me or the hoses! In the end I prevailed and was victorious but I do check them occasionally.
Dull the inside face and go to a marine chandlers and upgrade to thicker stainless steel jubillee clips would be my advice too. If the vehicle is a 'keeper' worth the upgrade despite the potential frustration and pain if not OEM.

Thumbs Up If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #360465 27th Sep 2014 10:12am
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Just checked mine - still tight after a few months (with the original LR clips). Didn't stop me giving them another 1/2 turn though Laughing Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #360471 27th Sep 2014 10:54am
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gilarion



Member Since: 05 Dec 2013
Location: Wales
Posts: 5084

Wales 2007 Defender 90 Other CSW Trident Green
Trouble with using silicone coolant hoses is as said; Silicone hoses need a greater amount of force to stay put. The trouble is the amount of torque required to the clamp the hoses to the radiator can distort the tubular connectors which are only made with relatively thin steel and once distorted they can leak.

You do not have the same problem with intercooler hoses as the connecting pipes are of a much thicker grade steel.
Post #360481 27th Sep 2014 11:48am
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pannawonica



Member Since: 21 Nov 2010
Location: Clackline Western Australia
Posts: 568

Australia 
what surprised me was how thin the standard rubber ones where . I found out when I fitted a set from Gary at Alive Surprised
Post #361207 30th Sep 2014 10:45am
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