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on 9/8/2003 6:17 PM, Mark Seaton at mark.seaton2@ntlworld.com wrote: > Hi Ben, what sort of mixture screws do you have- the later ones with a > little o-ring or the early with spring? They have different screw pitches so > I think that may make a difference to the "usual" settings. Mine are the > later finer threaded ones. Mine are the earlier ones with the springs on them, I think the later ones turn about 2 turns to an earlier screws' 1 turn, so this could account for the difference there. > What sort of gallons are you talking there Ben? Mine are imperial which > equates to about 18mpg US- very poor! I must say though that 90% of my > driving is the same route to and from work which has speed bumps most of the > way so involves a lot of throttle and brake action. The best mileage I ever > got was a long run on the motorway which netted 26mp(uk)g That's US, (I think). I calculated that working off the fact that the tank is quoted as 45 gallons or whatever it is. > I have the carbs as perfectly synced as I can get them using a very accurate > manometer between the intake manifolds on the balance pipe mounting tubes. I > double checked with a synchrotester and they tallied. It seems like you have covered most if not all of the parts that could be causing the problem. What about your fuel pump? Have you checked the pressure of that to see that it is not too high? Ben Doughney '63 1200 - Ringo '71 1600TL '65 1500N - Val http://members.tripod.com/~superkafer/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org