Nick, Leaking around the shaft can be a float level that's too high or a sticky float needle valve. The height is 'adjusted' by the thickness of washer that's used under the needle valve, when it's installed into the the carb top. A thicker washer results in a lower fuel level in the bowl, while a thinner washer results in a higher level. Sometimes, the float can be further tweaked by bending it a little, if it's got a brass arm. Have you checked and set yours? You did make a fairly big change when you replaced the leaky original float with a good used part. The manuals or rebuild kit instructions will usually show what the level should be and how to check it. When parked, the high level overflows into the barrel and because it's not being sucked into the engine, it collects on the closed throttle plate, and seeped out of the shaft bore. The bore can't be an extremely close tolerance, or the throttle would bind excessively, possibly getting stuck wide open. That would be alot worse than a tiny amount of fuel seeping past the shaft. There's no seal there, just a brass, nylon or teflon bushing to take up most of the gap. I suspect you have a good carb there, just a little is tweaking required to remedy the seeping.
HTH, Mike B. ----- Original Message ----- From: "Nicholas Stokes" <[EMAIL PROTECTED]> To: "Bug List" <[EMAIL PROTECTED]> Sent: Thursday, May 03, 2007 8:58 PM Subject: [vintagvw] Is There a Quality Carburetor Out There? > Is there a decent 34 PICT-3 carb available out there? > > I purchased a new Pierburg hoping that it along with my SVDA > distributor with a CompuFire ignition would keep my daughter's '74 > Standard happy for quite some time. > > Well... the distributor from AirCooled.net works great and gives the > smooth acceleration and performance I had hoped for but the carb has > not lived up to expectations. The first problem at about six months > was flooding out which was diagnosed to be a split float full of fuel > which I replaced with one out of a 30-year old one in the parts bin. > Now, a few months later, there are signs that it is leaking around > the shaft. > > Any recommendations out there? I'm not looking for any extra > performance, just something reliable. All though an extra boost > would be acceptable as long as it works properly with the SVDA dizzy. > > Thanks, > > Nick > VintagVW > http://homepage.mac.com/stokester/VintageVW/ > Dub~Tunes > http://homepage.mac.com/stokester/dub_tunes > > > > _______________________________________________ > vintagvw site list > [email protected] > http://lists.sjsu.edu/mailman/listinfo/vintagvw > _______________________________________________ vintagvw site list [email protected] http://lists.sjsu.edu/mailman/listinfo/vintagvw
