13T - Fuel Issues

[Darin Hull]

I’ve had some issue with a lack of power and the T running rough when the throttle is open more than halfway or so. Been going on since I got it back on the road about a month ago. I have a solution I’m working on just don’t have it in place yet.

I drove the T to my barber shop about an hour ago. T seemed to be running a little rougher than normal and I was having to adjust the carb mixture knob more than normal. After only a few minutes, I decided to go out and check on the T when I had a disconcerting feeling from the drive over. I saw the T was pouring gas out of the carb, almost a steady stream. I guessed the float was stuck open/down so it wasn’t cutting off the gas and free flowing as it overflowed the bowl.

I cut off the gas at the tank and it’s stopped the flow. I left the barber shop after maybe 45 min, turned the gas back on, and started after only 1 or 2 pills. Drive home, still rough, but got there with no problem.

Does that sound like a float problem? Any other thoughts?

Darin

[Rich Bingham]

What carb are you running ? Float malfunction or improper adjustment can indeed be a cause of poor performance.

[Jonah D'Avella]

Sounds like a dirty needle

[Darin Hull]

Believe a Kingston L4 but not positive. Working on procuring a Holley NH.

[perry kete]

Sometimes the problem is lack of gas flow from the sediment bulb and can be caused by two issues.
1) Screen is dirty and plugged up .
2) The valve hole is not in line with the fuel line when it is open. Some of the handle holes were not drilled in the correct position.

The car will run fine at lower speeds but when more gas is needed at higher speeds the sediment bulb isn't keeping up with the demand of the carb, thus lack of fuel when needed.

[Norman Kling]

I would suspect a float issue. Perhaps, some dirt in the needle valve. In fact, if it runs rough with the throttle open past half way, but when you stop the fuel pours out, either of two things could be a problem. If the gas stops pouring out when you turn off the engine, you could be running too rich which would flood the engine and make it run rough. But if it runs out when you shut off the engine, but stops only when you turn off the valve, you have a float problem. Sometimes if it is with dirt in the valve, or the float is sticking within the bowl, a strong tap on the carburetor will stop it, but if the float is saturated, it will keep flowing until you replace the float.
Norm

[Darin Hull]

The 13T is currently in a forced parked situation until I get a u-bolt mounting set in due to some missing bolts. I’ve purchased a rebuilt Holley NH carb from Russ which I plan on being the primary carb for the 13T. Once that’s installed, I’ll take apart the Kingston and see what the issue is.

Thank you for the feedback,
Darin