Stromberg Non Emissions Jets?

[dayoff]

I was wondering if anyone could help me out with a Stromberg question...

I'm using a set of Stromberg 175s on my twin cam Europa, with a vacuum advance distributor, non Emissions configuration, and it has a intake 'balance' pipe from a European spec Elan. What is the proper jet to be used in the Strombergs with this configuration? It seems more in line with an European Elan build than anything I would find in the Europa manuals, as they had crossover emissions piping and no balance tube on the intakes...

I've always thought my car runs rich and need too much choke to get started until it warms up, and am just going through everything to see if it's properly setup. Any detail is appreciated.

Thanks!
Pete

[RogerFrench]

A couple of questions.
1. Are you sure it's a vacuum advance distributor? Usually they were vacuum retard, and if so you need to block off the vacuum pipe.

2. Do you have adjustable needles? If so, B2AR may suit, try B1G if you have fixed needles. Which do you have now?

Your comment about too much choke and running rich seems a bit contradictory. Does it need a lot to start but then runs rich? What kind of choke arrangements do you have?

[RogerFrench]

Another tip - try http://www.lotuseuropa.org. Lots of people, including me, have TC's without emissions stuff.

[dayoff]

I will check.... I have 'advance' on my mind, as I just got done putting in an ignitor II in the distributor, and their catalog marks it as a 'advance', which may be incorrect as well?


I'll check on some of the details you mentioned, but essentially when I start the car cold, I have to pull the choke all the way out and it runs ok, and perhaps over 10 minutes or so, you can slowly move it back in until it's up to temp, then you can keep the choke in. If you try driving during this time, however, it can run a bit rough...

I have some techs in the area that have watched me start the car up and keep commenting to 'get that choke in!' when I start it up, but then kind of look puzzled when I mention that I can't do that during warmup without fouling all the plugs to the point of needing to remove them and clean them up.

The ongoing issue is that I foul plugs up quite a bit...too often...and if i'm not real careful with the warmup process and babying it the entire warm-up cycle (reving up the RPM a bit during warmup so it also doesn't sit at idle, which is a tad rough), i will foul them up fairly quickly and be running on fewer cylinders. I'll still be running...but not well...but enough to limp the car back someplace.

Pete

[RogerFrench]

What plugs are you using? How's your ignition timing?

[gus]

AFAIK all strombergs have a balance pipe

the jets are theoretically fixed, a non emission carb would have adjustable jets

later carbs had adjustable needles but still fixed jets

so if you have fixed needles and fixed jets[full early CD2SE] then the only way to richen the mixture is to press down the jets, difficult to do well

It is possible that if you only run one enrichment circuit that when cold you can foul a plug there, so maybe lowering the jets a tad will make it less cold natured and more able to run without choke and perhaps less fouling

[mariodschy]

I've always thought my car runs rich and need too much choke to get started until it warms up, and am just going through everything to see if it's properly setup. Any detail is appreciated.

Thanks!
Pete

Pete mentioned that it runs to rich, and fouling the plugs also suggests that it is to rich.
"press down the jets" means to lower the distance between the bridge (air intake) and the jet, don't misunderstand this and do it the wrong way