Stromberg EE-14 Running Rich

Posted by Ken_P On 2019/7/11 8:04:17

My 1937 120 is equipped with its original Stromberg EE-14. When I purchased the car, the carburetor appeared to have never been touched. It leaked out of the float bowl, and the throttle valve shaft was sloppy, so I had it fully rebuilt, to include replating all surfaces and rebushing the throttle shaft. The vendor (Chris's Carb Shop in Dayton, OH, which was recommended by Daytona Carb) flow-tested it prior to shipping it back.

The carb mostly works great - I set the idle with a vacuum gauge, verified the choke was properly adjusted, etc. I've also given the car most of a full tuneup (haven't gotten around to adjusting the valves yet)

My problem: the car runs extremely rich. Cloud of black smoke wherever I go, and soot dribbling out of the tail pipe. I suspect the power jet may be leaking by.

Here's what I know:

1. The car doesn't use any oil.
2. Timing is good.
3. It starts immediately, even after sitting for a week or two.
4. Power is good.
5. The car does get a little warm on hot days at idle or pulling a hill, but I suspect that's cooling system related, not carb related, and isn't the point of this post. Just trying to include all information.

I'm tired of the smoke cloud. Any tips on troubleshooting the carb to determine the source of my problem? I'm hoping to solve it myself so that I can continue to drive the car.

I've looked at my section of the Stromberg manual on this site, and couldn't see anything on repairing or troubleshooting the power jet.

I'd rather not throw it away and put on a Carter since it's already rebuilt, etc. but thta's the final plan if I can't get it to run cleanly.

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