Dumb question, but have you verified that the throttle linkages are all free and clear, and lubed? If it's hanging up on something, it could exhibit the symptoms you're observing. Are the butterfly's operating freely?
Sent from my iPad On Apr 25, 2011, at 7:21 AM, [email protected] wrote: > Gentle Alfisti, > I hate to be defeated by a car problem. My newly rebuilt Spica-injected 2 liter runs very well when cold, starts fine in the morning. When warm it stumbles at exactly 3000 rpm when going through the gears. This stumble can be stopped with more application of the throttle pedal. The car seems to run rich and is hard to start when warm. I have rechecked everything I know to confirm, injection timing, cam and ignition timing. I have also performed all the set-up procedures in Ingrams book and read everything in the Owners Club Technical Series on the pump. Has anyone encountered anything like this? Would air getting into the fuel line cause such a stumble? Has anyone ever heard of a Spica pump governor oscillating? The problem seems to be related to throttle position and is recurrent at precisely the same rpm. Something is wrong and I don't know what it is. The pump is a newly-provided Ingram unit. Thanks Digest > > modelle in somers point > 115.01, 115.02 > -- > to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi > or email "unsubscribe alfa" to [email protected] -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
