Elusive Stranger to me show details May 25 (3 days ago) Reply Hey Brent How are you? Thought you'd like to see what's just happened to me! Feel free to use those images as a word of warning to others. I shall probably delete them from photobucket in the future. http://www.vwkd.co.uk/bb/viewtopic.php?t=2572 Steve Make sure the tank vents ie air can get in. I've been very lucky! Mine's obviously stopped venting after I changed a split filler elbow Yes the tanks are meant to be flat bottomed! I didn't have the Scooby canister in place (well it worked fine with the split filler neck!) My VW vents work both ways, ie suck and blow. Now in hindsight (wonderful thing) VW vented the tank to the airfilter *not* the manifold. Live and learn. I hope my mistake means you peeps don't have to make the same one. _________________ '78 Bay, 2 litre 091 box, EJ20 NA & the ashtray's on the 'right' side. I don't lean forward for hills any more Bugger, missed out on "Live fast, die young"