C-85 Stromberg carb and mixture issue (again)

That's kinda what I was thinking. Guess I'll have to pull the carb again and send it back to D&G Supply who serviced it in May although I'm waiting for a reply of advice from them before committing. Thanks Larry.

OK......Again, I'm making progress on my 415C, ser # 508 with C85-12, and am almost back in the air after a long ordeal to get her in airworthy shape after purchase from a less-than-reputable seller. After having the carb rebuilt by a certified shop, it still runs kind of rough in the 1000-1300 rpm range. Played around with the idle mixture and if I back it off from anywhere besides the completely closed (full clockwise) position, it runs even rougher and after shut down, fuel is seen to run out of the filter/intake box onto the cowling underneath. When I close the idle mixture screw, this goes away. She runs just fine at all rpms above about 1500 or so and static, full throttle rpm is just right at 2200. I have a feeling the carb still isn't right.

Any C-85 guru's out there with advice? Is this a float issue as seems to be the case a lot of the time with the Stromberg carbs? If I hadn't spent so much $ on other stuff, I'd be tempted to just go ahead and replace the carb with a Marvel/Schebler and be done with it.

Thanks,
Chris (Sioux Falls, SD)