Can you establish if it is coming from the valve or around the edges? Do you know what make it is? I am guessing it will be a Leafield A7 on your boat, it should be written on the cap.
The valve can be tightened with a plumbers spanner if it is an A7 but you would need a specialised tool for others. If it is coming from inside it may be dirt on the seal, this can sometimes be dislodged by over-pressuring and pushing the valve centre in and realeasing several times.
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Hypalon Tubes built in-house,retubing, repairs, Accessories
I would say that the solution would be to rip off the tubes and throw them away. You then go and buy some hypalon tubes from Paul Tilley at TIDEL (http://www.tidel.biz/). Once done you ask him to find you a decent hull to stick the tubes on. Your Bombard hull being now completely useless, you can transfert your engine over and throw away the Bombard hull. Problem sort
Ah, OK, i'm not a fan of these valves, i would recommend swapping it for a C7 or A7 Leafield number. I have an A7 you can have if you want to go this route. PM me your details and i can send it to you or you can pick up as you're not that far away.
Pablo... Are you on drugs or something?
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Hypalon Tubes built in-house,retubing, repairs, Accessories
