16-07-2018, 09:46 PM
Have you examined the gasket on the top of the pump? It may be that the cork or rubber material is porous and allows petrol to leak back to the tank over a period of time. I've replaced this gasket with an 'o' ring of appropriate diameter. The hot weather probably isn't helping. Check that the bolt on top is sealing adequately as well. I use a 1/4" Dowty Bonded Seal at this point.
Hope this works for you
Hope this works for you
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