Thermoquad idle issue

joseph lamb said
Hey Brother , I have a thermoquad 1971 6139s that has a leak in the primary circuit after
the engine is shut off
passenger side only drips badly at shut off . New build I did and new plastic floats and set to 1.00
float level . I suspect the o ring in the primary on the passenger side is not compressing enough to seal it , the plastic body has some weirdness at the o ring seat area on the passenger side .
When I got this car last week the TQ was flooding like nothing I have ever seen , .
now it is driveable and work well but at shut off if you look down at the cluster on the passenger side you can see liquid fuel and vapors . Take 10 seconds to re fire the 340 up .Want to get it to stop this ......thanks ...Joe

are you using the correct O-rings? the obsolete o-rings were just flat, "square" o-rings. The revised design o-rings are called "X" o-rings, because they are molded with ridges. If you can imagine cutting a cross section of the ring it looks a little like an "X".
Another thing to check is to make sure the seat is fully tightened, and when you are adjusting the float level, you have to be careful to not press on the float and the needle, because you can deform the conical rubber tip. Also, rarely, one of those plastic floats can absorb fuel, and become too heavy and lose buoyancy.