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On Sun, 2006-04-23 at 12:33, big.al@bigblackdot.net wrote: > > Investigation after cleaning the first T3 tank discovered that T3 tanks > are different that Type 1 tanks. They have a "cup" around the supply > port with the return port acting as a pump to bring more fuel into the > cup. (at least this is true for FI, we're still trying to confirm or > deny if earlier carb models have this same cup set-up.) > I have 2 early tanks in the garage. One from a 64 T-34, and one I just got. to replace the T-34 tank. I will look in both this afternoon, and confirm or deny whether the early tanks had the cup. I can even cut the top out of the original tank and take a picture, because the whole top around the filler neck is rusted out. > > > On this weekend's episode: > > > However, the second tank from the automatic that was not supplying fuel, > was much more rusty. After this weekend's round of cleaning and prepping > showed what I believe was a problem from the factory! Looking from the > fuel sender mounting hole, only about a quarter of the return port can > be seen through the return hole in the cup. Therefore, the cup inside > the tank was not aligned with the return port! I highly doubt that it > could have been knocked out of alignment, so original manufacture > defect is the only logical answer. :( > The FI tanks have the return fuel pipe from the engine coming up right in the middle of that port in the cup. It gives it a syphon effect, to help ensure that there is gas in the cup until you run completely out. http://classicvw.org/gallery/main.php?g2_view=core.ShowItem&g2_itemId=288 -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) '05 KIA Sorento SUV russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~