All, The suggestions I recieved were that the port on the bottom of the Stromberg should have vacuum at idle and that the retard unit would be fine if disabled.
I took the air cleaner off this evening and here is what I found - the port is indeed on the engine side of the butterfly valve and when the car is idling I can feel suction on my finger when I hold it over the port, the suction goes away when I ran the idle up. I set the timing to 10deg BTDC but I haven't taken it out for a drive yet. I'm planning on butting a screw into the port on the carb to cap this off. Berger Bob 78 Spitfire St. Louis, MO On Oct 12, 2008, at 7:02 PM, Greg Rowe wrote: > From the handful of carbs that I've seen, the bottom connection > is ported vacuum and the upper one is manifold vacuum, but my > expereince is hardly comprehensive so take it with a grain of > salt. Probably the most sensible thing to do is either hook > up a vacuum gauge or if you don't have a vacuum gauge, hook up > a timing light and check the timing at idle and at 3000 rpms with and > without the vacuum line to the dizzy connected. That will quickly > show you if the retard is operating as it should. > > The other question in my mind is why you would even want > vacuum retard, IMHO leaving it unplugged is the most sensible > option. > > Greg Rowe > 79 Spitfire > Hatfield PA > > --- In [EMAIL PROTECTED], Berger Bob <[EMAIL PROTECTED]> wrote: > > > > All, > > > > The single Stromberg carb I have on my car has the vacuum port on > the > > bottom. Is this a port that will have vacuum at idle? or at speed? > > > > This carb is not original to my car. The distributor is original > and > > I have an original Opus ignition that works, I'm just trying to > > figure out if this vacuum port will work with the stock vacuum > retard > > unit. > > > > I currently have this disconnected and the timing set to 10deg > Before > > TDC. > > > > Thanks for your help. > > > > Berger Bob > > 78 Spitfire > > St. Louis, MO > > > > > > > > [Non-text portions of this message have been removed] > > > > > __._,_.___ > Messages in this topic (10)Reply (via web post) | Start a new topic > Messages | Files | Photos | Links | Database | Members | Calendar > >> To unsubscribe send an empty email to: nass- > [EMAIL PROTECTED] > >> NASS Home Site nasshq resources http://www.nasshq.org > >> Full Membership details: http://www.nasshq.org/docs/memberapp.html > > Change settings via the Web (Yahoo! ID required) > Change settings via email: Switch delivery to Daily Digest | Switch > format to Traditional > Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe > RECENT ACTIVITY > 4 > New Members > 5 > New Photos > Visit Your Group > Health Zone > Look your best! > Groups to help you > look & feel great. > Healthy Living > Learn to live life > to the fullest > on Yahoo! Groups. > Yahoo! Groups > Cat Zone > Connect w/ others > who love cats. > . > > __,_._,___ _______________________________________________ Support Team.Net http://www.team.net/donate.html [email protected] http://autox.team.net/mailman/listinfo/spitfires http://www.team.net/archive
