IanT90 Posted February 1, 2017 Share Posted February 1, 2017 This question has probably been asked a hundred times, but does anyone know the correct dimensions of the rubber 'O' ring used on the cyclone breather ? Thought I would go for the cheaper option of buying in bulk off eBay, plenty of sets available at good prices. Then I looked up the dimensions through google and ended up scratching my head, there are different sizes offered depending which aftermarket supplier you go for ? with the same part number LO100000. There is: 0.2 X 2.2 X 2.2 and 0.5 X 1.5 X 1.0 ? assume smallest value is the thickness ? but the other values don't make sense unless it's just me going simple in my old age. I know easy solution is to take off the original and measure it, but leaking quite bad as it is at the moment. I think might be a good idea to seal the O ring in with silicon when I replace it. Quote Link to comment Share on other sites More sharing options...
western Posted February 1, 2017 Share Posted February 1, 2017 possibly the thickness/overall external diameter/internal diamete Quote Link to comment Share on other sites More sharing options...
wonderdust Posted February 1, 2017 Share Posted February 1, 2017 I've used an o ring from a speedfit fitting before, cannot remember if it was 22mm or 15mm but it was near perfect. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted February 1, 2017 Share Posted February 1, 2017 I bought some from Paddocks but they were Britpart and the thickness was too thin and wouldn't seal, so I found one that fitted better in a little cheap set I bought a few years ago. Mo Quote Link to comment Share on other sites More sharing options...
IanT90 Posted February 1, 2017 Author Share Posted February 1, 2017 Ah you read my mind Mo, that was my original plan to buy a cheap set of multi size rings and find one that was a good fit. My only concern was that I ended up forking out £5 for a kit with 255 variations and none where suitable ? The kit I have in mind has both 15 and 20 mm diameter rings so will select the one with the thickest wall and use a touch of silicone for good measure. Thanks for the info guys much appreciated. Quote Link to comment Share on other sites More sharing options...
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