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On 8 Aug 2003 at 21:11, Mark Seaton wrote: > My fasty is running great at the moment- really smooth most days but I'm > still getting lousy gas mileage. > The carbs are stock Solex re-built/NOS so I believe them to be OK and I've > been through a few of them to no avail. I'm pretty sure that there are no > vacuum leaks, the dist is fine and there are no fuel leaks. The jets are as > specified stock for a '73 1600. I'm beginning to think that there is > something more fundamentally wrong/amiss. Is your vac adv working? Are you sure that it's actually working AND actually getting vacuum. The only way to check for actual vacuum would be to monitor it on the road. Are these the right carbs for this dist? I believe we had a discussion awhile ago and discovered that there were different generations of our Solex carbs, which were meant to work with different kinds of distributor advance mechanisms. Mixing these up would cause your gas mileage to suffer, but I suspect you have this all straight, because I think you were the one who brought it to our attention. > I have enriched the idle progressively to about 5 turns out on each > and am getting better mileage (but still only 20-22 mpukg) and a far > smoother running engine. This doesn't sound too bad to me, unless these are imperial gallons, which they probably are. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org