Fuel pressure sensor leak

[KyFarm]

Put a HT383 in my 69 K10 and after running a bit installed a ProFlo4 on it. After driving a bit I’ve developed at small drip fuel leak from the threads of the fuel pressure sensor, tried to tighten the sensor and that didn’t fix it. Removed the sensor and checked threads on sensor and fitting, all look good.

the sensor isn’t built like it should take a bunch of torque and doesn’t have an o-ring.

It’s an edelbrock 3546 sensor with 1/8 -27 npt threads.

Does anyone know of a trick to get this sealed?

Tighten it until it seals or cracks? This seems like a good way to develop a crack later and burn your truck down.

Thanks for any help.

[Willshook]

NPT needs sealant; it won’t fully seal dry.

[KyFarm]

Originally Posted by Willshook

NPT needs sealant; it won’t fully seal dry.

Can you suggest a sealant that works on fuel lines?