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The WD Motorcycle forum
I'm looking for some advice on fuel and oil tank cap seals. They both leak on my BSA M20.
I've seen cork 2 and 2.5" seals on eBay but the fuel cap seems to be 3".
Is it a case of DIY cutting only?
Thankyou in advance.
I couldn't tell you what the sizes are but I make seals out of cork, they work fairly well & are easy to do. Is it possible to get perfect sealing with these old tank caps?
I have found leather to be the best for making seals...Ian
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Thank you. What thickness would be recommended?
About .040"-.060" (1-1.5mm) and a reasonably stiff leather if you can find some....Ian