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Hi @all,
i am looking for the dimensions of the fuel line O-Ring for the P38 GEMS (RR Classic and D1, too). Seems they find use in the power steering lines as well.
Esr259 ... need the dimensions to order them here, fast ;-)
Thanks in advance
best regards
KCR

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Specs here https://www.amazon.sg/BEARMACH-Fuel-Filter-Rings-ESR259/dp/B07H6Q8BR9

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Richard, gr8 assistance as always, but this seems to be size of the packaging … I had the same Idee, but even the Brit-Car webpage which is usually very helpful doesn‘t show dimensions, sadly.

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I just saw dimensions on that Amazon listing and didn't look at what they were, sorry. I'll be honest and say that I wasn't even aware there were O rings on the fuel filter. I have a fuel filter that I bought to fit on my car many years ago and have never bothered. There may even be O rings in the box with it but I doubt it. Mine runs on petrol so rarely and I've seen so many people saying how difficult it is to undo the unions it isn't something I have felt like doing only to end up with a 30 minute job becoming an all day job. The pipes are 8mm outside diameter so the O rings are going to be around that sort of size.

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I found a fuel filter repair Kit in my parts box with - guess - two o-rings. The fuel filters come without O-rings. As I am helping a friend finding a fuel supply problem with his car we are swapping the pump (and expect to fit new fuel lines above the tank anyway). So I measured and come to 8mm x 1 mm ordered some will come back, if they fit when they are delivered. Thanks for Your help Richard!

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8mm is correct, but they are 1.2 mm thick.