Join Date: Apr 2007
Location: Bowen Island, British Columbia
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Thanks for your response! I don't think I need, or even want, the sending unit to attach to the tank ... I just need to be sure it's well sealed. What's happening is that when he tops up his tank, the fuel in the filler hose leaks at the sending unit. I'm not very experienced with diesel fuel fittings other than to know that it seems to be very good at finding it's way past anything but a perfect seal. My friends live on their boat, have some health issues already so the last thing they need is to be inhaling any diesel fumes from the bilge and, of course, the potential for it to be pumped overboard is one we want to avoid at all costs. So I really want to be sure I get this right the first time.
So my thought was that some form of sealant might help the gasket which came with the sending unit form a better seal ... e.g. "Coats pre-cut gaskets to increase reliability". Further, there are some imperfections around the top of the tank where the sending unit fits thanks to the nimnul (quote unquote "professional") who removed the sending unit to polish his fuel and reattached it with wood screws into the tank itself. Am I being overly zealous about this? i.e. should I just attach the unit with the precut gasket provided and see if it leaks?