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13th January 2019, 08:33 | #11 |
Loves to post
Rover 75 Tourer Join Date: Jan 2015
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I'd be interested... if nothing else, at that price it makes a cheap reliable spare :-)
Might be worth setting up a list somewhere to keep track of everybody who is interested.
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Done so far... loads. Special thanks to Arctic, Lord_Skyrunner John_H, Holland314, JamieWelch and Drewski for their help so far. Left to do... loads!!! |
13th January 2019, 12:31 | #12 |
Gets stuck in
MGZTT Join Date: Feb 2015
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I do not want to be tarnished as a detractor from silicone hoses, I have used them and considered them on other cars, but a friend of mine is an expert in this field, and classic cars being the editor of a few mags.
We were having a discussion on using these hoses in classic cars and he gave us this information that you should consider. You may say he has an axe to grind but he is well respected in the field. I reproduce an article he wrote after we had our discussion. Your Editor has to advise you that he has an interest in a rubber manufacturing concern who produce cooling system hoses for many classic car clubs and specialists. We often get asked about silicone hoses and the following are a few disadvantages of this material. I would also add that if you do fit them to a vehicle that you must not use traditional jubilee clips as the sharp edge will cut into the material. Silicone Hoses Disadvantages. Permeability to oil and fuel. The molecular structure of silicone doesn't play well with oil and other oil based products. We do not recommend using silicone hoses for any applications where they will come into contact with fuel or oil. Permeability to water molecules. Silicone is watertight, but water vapour can escape very slowly through the walls of the hose. Think of a balloon that you blow up with air and leave on a table for a week. The air escapes very very slowly through the walls of the balloon. There's a similar effect with silicone and if you have silicone hoses you will find that you have to top up the radiator from time to time , not because of a leak, but because of the water escaping through the walls of your hoses.. While silicone hoses are a must for racing applications some people do not like them for daily driving for these reasons. He then goes on to explain the benefits of rubber hoses and the problems found with the readily available cheaply manufactured imported ones. THey use Kevlar reinforcement and not cheap fabric found in the imported ones causing them to soften and fail early. So the information he gives makes silicone, in my opinion, to be something to probably avoid. We use them on intercooler hoses where they get into contact with fuel and oil, and cooling systems. I know my Rubber hoses lasted 130,000 miles but looking at that info will the silicone? Only time will tell but for me now a good set of uk made rubber ones are preferred. |
13th January 2019, 13:12 | #13 |
Posted a thing or two
Rover 75 1.8t Join Date: Oct 2015
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I considered Silicone Hoses - In the End i opted for a complete set of Original hoses £100 with PRT and all connections the Original hoses on my Car lasted 14 years and (almost) 90k WITHOUT failing time will tell on the New set i fitted.
OEM Looks Tidier too Paul. |
13th January 2019, 13:29 | #14 |
This is my second home
Land Rover Join Date: May 2013
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Someone will be along soon saying you will have to pay traders fee if you are going to sell said items to members
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13th January 2019, 13:30 | #15 |
Gets stuck in
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The quality of manufacture is now not as good as in the past causing premature failure. With them using Kevlar and not the fabrics available they overcome this. Silicon ones are probably better than poor quality rubber but if good quality rubber are available they will probably be better. I would not be bothered about having to top up water on occasions, but there are those who never check, and they could be caught out by loss of water especially if they think they are the bees knees and resolve all problems. My main concern would be those who like me fitted them to the intercooler. Was it a good move? The information he passed on is well known within the industry but have you heard anyone tell you this. A solely Silicon manufacturer may not tell you these disadvantages that they keep to themselves.
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13th January 2019, 17:21 | #16 |
I really should get out more.......
Rover 75 connoisseur se v6 auto Join Date: May 2014
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As i have done and swopped out rubber for Silicone
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She came off the Longbridge Line on 20-05-2003 The Silver Machine was the 13th of 160 Rover 75's to come off the production line that day and is the 100th of 527 Starlight Silver Rover 75 2.5 V6 Connoisseur SE Auto saloons listed in the build records produced world wide. |
13th January 2019, 22:38 | #17 |
Posted a thing or two
Rover 75 Saloon Join Date: Apr 2007
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Just to clarify, the blue antifreeze in question has to be silicate based antifreeze and it needs to be changed every 2 years. A lot of blue antifreeze is OAT based and is just as bad for your hoses as the red stuff.
Halfords do a decent silicate based blue antifreeze. It's the cheapest in their range and perfect for getting long life out of rubber hoses: https://www.halfords.com/motoring/en...-antifreeze-5l My Volvo 850 T5 has run silicate antifreeze for 21 years and 144000 miles. The hoses are dry as a bone and the coolant circuit is clean as a whistle.
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13th January 2019, 22:45 | #18 | |
Gets stuck in
Rover 75 Connie Tourer & Connie SE Saloon & Club SE Tourer Join Date: Sep 2014
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Quote:
Shame they only supply them for the 1.8T, what about for the V6 ? |
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13th January 2019, 22:54 | #19 | |
Gets stuck in
Rover 75 Connie Tourer & Connie SE Saloon & Club SE Tourer Join Date: Sep 2014
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Quote:
That's news to me. I use OAT because that's what the manual says, and for some reason (what?) I thought it was essential for the health of our engines. But if OAT is bad for the rubber hoses, why was it originally specified? Last edited by p2roverman; 13th January 2019 at 22:55.. Reason: remove ecess extra blank lines |
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13th January 2019, 22:57 | #20 |
Posted a thing or two
Rover 75 Saloon Join Date: Apr 2007
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I have no idea why it was originally specified, probably because it lasts longer and brought costs down for fleet service managers. OAT is nasty stuff, IAT such as silicate based antifreeze won't do your engine any harm and won't degrade your rubber hoses.
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