[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
Thanks to Dave and Ben for your suggestions. I am still working on the assumption that I still just need to tweak the carbs a bit more to get it going properly. I have been getting nearer and nearer so there is no reason to assume that a bit more tweaking won't get me there eventually. It is mostly taking a long time because I don't have that much time to work on it, not because I have been working for weeks with no result. As far as I remember the needle valves are brand new. When I really get to the point that I feel I have tried everything, then I will start taking the carbs apart and looking for other problems. I'm not sure what "icing up" means in a carb context. I also think that putting the air cleaner on has put the existing adjustment out of whack, necessitating a bit more tweaking. I have done some already and improved it, but not cured the problem completely. It does seem however that the dual carbs + automatic transmission combination is not a particularly happy one, possibly particularly non-NOS carbs with 35 year old tranny and old engine. The drop in RPM when you put it in gear seems to make it particularly problematic to adjust the carbs, and there is no advice on how to do this in the manuals. Daniel Baum 1969 Type 34 automatic http://www.qldesign.com/type34 > on 27/12/2002 11:59 PM, Daniel Baum at dbaum@isdn.net.il wrote: > > > Anyone have any ideas, other than trial and error until it works? Personally > > I suspect that the idle circuit is still fractionally too rich. Also, should > > there be any difference between working with the air cleaner and without it? > > All my tuning up to now has been without it, and it seems a bit different > > (it seems to behave as if it is running slightly richer) since I put it > > back. I have put new O-rings on the carbs, which seal very well. > > I have found that I get better results if I perform the whole usual tune-up > procedure, then put the air cleaner back on, then readjust the mixture to > get it just right. > > Also, I find the idle slows down (mixture richens) when I put the breather > pipe back on the air cleaner so I always set the idle about 50 rpm higher > than what I want to compensate. > > The behaviour that you are experiencing almost makes it sound like the carbs > are icing up, but I have never heard of that with dual carbs on a VW before. > > Ben Doughney > > '75 1200L > '63 1200 - Ringo > '71 1600TL > > http://members.tripod.com/~superkafer/ > > > ------------------------------------------------ > To unsubscribe, E-mail to: <type3-off@vwtype3.org> > For more help, see http://vwtype3.org/list/ ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/