Annoying fuel bowl leak.

[Canadian1968]

I am getting an annoying leak from the front float adjustment locknut/screw . It has a rebuilt nylon washer instead of paper gasket orginal. It a very small leak but it is there .

Any suggestions ?

Also... who runs a regulator with their setups. I am running a carter street strip mechanical . Trying to track down which one exactly wondering if I am getting a bit to much fuel pressure ?

 

[pnora]

Fuel pressure is not going to cause the leak. If anything it would blow past the needle and seat dumping up and out of the vent. I had to change my Carter pump 4862 to a lesser psi street strip pump 6903. I had excess pressure and flooding. You can buy sight bowl seals/gaskets. Start with the gaskets. If its running ok the pressure most likely is not excessive.

 

[ckessel]

Do you have a photo of your fuel bowl showing your adjuster?

 

[Canadian1968]

That's a video of engine from a few years ago it zooms in on the fuel bowl because it was leaking backn then to. It doesn't always leak, hence annoying part.

The car runs great .

 

[MoparLeo]

Replace the washer and look closely for nicks or burrs on either the screw /gasket seal surface and the top of the fuel bowl. If the gasket doesn't seal it can only be a bad gasket or damaged seating surface(s).

 

[pnora]

Does just the front leak or both? Summit has the gaskets https://www.summitracing.com/parts/qft-8-67qft

 

[Canadian1968]

It's just the front...

See that kit has 2 gaskets.... I think I'm missing one. One goes between the surface of the bowl and the adjustment nut. Then another between locking screw ? I don't know why but j feel like there was only 1 when I took it apart last

 

[pnora]

It's just the front...

See that kit has 2 gaskets.... I think I'm missing one. One goes between the surface of the bowl and the adjustment nut. Then another between locking screw ? I don't know why but j feel like there was only 1 when I took it apart last

That could be your problem.

 

[ckessel]

It takes two gaskets. One goes under the screw head, the other under the nut. The hole size is different so you can't use two of the same gasket.

 

[Canadian1968]

Think I finally got it . I took the nylon washer and lightly sanded it with some super fine sand paper , as well as the face of the adjusting nut. First try actually made it worse , I actually had this pin hole stream shooting out! Took it off and did some more . There really was nothing obvious, but obviously something was there between one of the surfaces. Will keep an eye on it but thing I got it . What a pain !