Area Representative Piers300 Posted May 17, 2017 Area Representative Share Posted May 17, 2017 I am thinking about replacing all the coolant hoses on my R300K (with wet sump), including the heater hoses to Silicone. There is a fair bit of information in the archives, but quite old and nothing that recent I could find..Have any R300K owners recently fitted a silicone system that fits and comes with new clamps that work.Who are the suppliers and what do your recomend?Thanks in advancePiers Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 17, 2017 Member Share Posted May 17, 2017 Is the set-up in the R300 different from other Ks? If I wanted anything custom I'd ask Classic Silicone Hoses.Who are the suppliers and what do your recomend?I put all the details I could find in a single thread somewhere. There's lots of satisfaction with all of the big three, and one of them offers a Club discount. Jonathan Link to comment Share on other sites More sharing options...
elie boone Posted May 18, 2017 Share Posted May 18, 2017 SFS offer a club discount on silicon hoses. Link to comment Share on other sites More sharing options...
Area Representative paul richards Posted May 18, 2017 Area Representative Share Posted May 18, 2017 Use SFS. Club discount and good service. Link to comment Share on other sites More sharing options...
john milner Posted May 18, 2017 Share Posted May 18, 2017 I have a non-R K but have changed the main hoses to silcone. I have found that some need the occasional tightening. Also when I changed ot the heater to an all metal one while retaining the rubber hoses I noticed the hoses leaked with the original Milakor clips so these clips had to be changed. My conclusion is that silicone hoses need a firmer grip than rubber and may not be a good idea for people who do no DIY. Link to comment Share on other sites More sharing options...
SM25T Posted May 18, 2017 Share Posted May 18, 2017 I find the hose clamps can be tightened on silicone hoses every couple of months. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 18, 2017 Member Share Posted May 18, 2017 Surprised at that last sentence, John. I barely know the handle of a screwdriver from the jaws and I haven't had any problems. I use a silicone spray lubricant on the inside of the hose and on the clamp. And a very wise person once advised me to use the hex head rather than the slot to tighten the clamps. (Incidentally the original clamps from Caterham were fine after 10y and I didn't need to use most of the fancy new ones I'd bought after browsing BlatChat).Jonathan Link to comment Share on other sites More sharing options...
Peter G Posted May 18, 2017 Share Posted May 18, 2017 Another for SFS. I was part of a bulk but but I believe they now offer a discount to club member.And yes use the hex with a ratchet to tighten, and recheck now and then, not had any leakage for over a year now. Link to comment Share on other sites More sharing options...
Area Representative Piers300 Posted May 18, 2017 Author Area Representative Share Posted May 18, 2017 OK Thank you all. Looks like SFS is the place to go. Piers Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted May 18, 2017 Member Share Posted May 18, 2017 Please let us know how you get on, and whether there's anything special about hoses for the R300.ThanksJonathan Link to comment Share on other sites More sharing options...
PROBE2 Posted May 18, 2017 Share Posted May 18, 2017 Hi all, I just changed my hoses to caterham silicone hoses, fairly straightforward job other than the J hose (beware knuckles!). Yes agree the clamps do seem to need a little more than standard hoses. Also my R300 had a plastic joiner hose and the interim pipe with temp and Ecu sender so you will need to cut the block to heater hose to accommodate. I took opportunity to fit the bleed valve in top heater hose to aid refilling. Cheers Paul Link to comment Share on other sites More sharing options...
Edzup Ezzer Posted May 18, 2017 Share Posted May 18, 2017 I used Classic Silicone Hoses on my K series and have been very happy with them. Do be aware however that in the case of their respective K series 'kits', the Classic one has 8 hoses whilst the SFS kit has only got 5 hoses according to their website. Not entirely sure what the differences might be but I think it maybe the inclusion (or not) of heater hoses. Classic were also very helpful when I wanted a special.Ezzer Link to comment Share on other sites More sharing options...
SM25T Posted May 18, 2017 Share Posted May 18, 2017 Hex socket is safer ...... you risk stabbing the hose or yourself if you use a flat blade screwdriver Link to comment Share on other sites More sharing options...
john milner Posted May 18, 2017 Share Posted May 18, 2017 If you spray silicone on hoses you are doing some DIY. A no-DIYer would probably not even take the bonnet off never mind adjust the obvious.I agree with the hex comments. Link to comment Share on other sites More sharing options...
David Belding Posted May 19, 2017 Share Posted May 19, 2017 I would use a hose clip driver, the flexible bit makes it hard to over tighten (strip) the clip. Link to comment Share on other sites More sharing options...
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