Join Date: Jun 2006
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Rep Power: 10
I pulled out my monel tank and gave it to a pal and replaced it with a Tempo tank 2/3rds the original size. I replaced all the fuel and vent lines and put in a fuel/water separator and a fuel line shut off well away from the carb side on my A4. Problems went away.
I have to say as well that while my range has been reduced to 60 NM or something, it's hardly an issue when I get 30 NM of range per five-gallon jerrycan. Three jerrycans and a full tank to start allow me to circle Lake Ontario under power, so it's academic anyway.
The only proper way to solve this is to have the tank with an accessible sump beneath the pickup...think like your "cup" filter on the A4. If the goo collects, it goes into this sump...drain it and you get the goo out. If the pickup is visible, you can even reach the pickup screen...there should BE a screen on that pickup tube...and clean the crap off it as well. Other than that, if you don't have a four-inch access cover on the tank top, I'd just get a new tank for a hundred bucks. I was reduced to gravity feeding from an outboard tank at one point and that was not to spec, to say the least, and the job of replacement took less than a day.