I added some foam rubber to the side of the bowl to try and dampen vibration and the problem persists. I noticed that the HS6 from the kit uses a solid spacer for the float bowl and I replaced it with the rubber version, but the problem persisted. It seems like this is NOT an issue of too much fuel pressure, but of the float vibrating/resonating and causing it to allow too much fuel in, which then floods the carb (causing the engine to run rough) and overflowing the vent.Īny suggestions on how to fix this? Fall is definitely in the air here in Chicago and I can feel my driving season ticking away. While this was happening I checked the fuel pressure gauge and it was still at 3.25 lbs. The engine started to run rough and then fuel started coming out of the overflow pipe (I have mine plumbed to exit about where the end of the transmission is). After it warmed up some I ran the engine at about 3000 rpm to let the leaks commence. I put the car on ramps, put UV dye in the engine, and started it up. I was able to recreate the issue this morning in my driveway while I was looking for oil leaks. I checked the float - it was in good shape and is the black newer style. I bought an expensive fuel pressure gauge from McMaster-Carr to check the fuel pressure - dead on at 3.25lbs. I put on a good fuel pressure regulator - and the problem persisted. So I replaced the generic fuel pump with an electronic SU pump - and the problem persisted. I suspected fuel but started with the ignition system to make sure everything was up to snuff - and it was. The engine ALWAYS restarted without issue. I could press in the clutch, let the engine die, then release the clutch to use the momentum of the car to re-start the engine. The symptom was during cruise, the car would begin to run rough and then die. This is the newest version of Moss's supercharger with the HS6 carb. I have been having an issue getting my supercharged engine dialed in and today I was able to identify the problem. May 04 VAWilliamsburg British And Impo.Apr 20 FLGathering of the Faithful Sou.Apr 06 FLCentral Florida All British C.Mar 24 ILAll Sports Car Swap Meet and.
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