Howdy,
Take a look at the pictures. The well nut is actually a nut assembly covered in rubber (nitrile in our case)
You have a hole in the plastic fuel tank. The fuel line has a threaded fitting on it, these threads reach the nut assembly on the far side of this little well nut. When it starts compressing, kinda like a rivet, it smashes the rubber out to the sides and seals the hole. This is also where folks get in trouble. They want to make sure it is tight. That is when that extra turn makes the rubber split, and you have to start all over. These well nuts are encased in nitrile rubber, the fuel line pipe threads is what they are saying to put a little form-a-gasket 2. Obviously fuel rated Teflon tape works too.
When the well nut starts to squish.. yes it has a tendency to turn the whole assembly. I was able to put a large flat blade screwdriver on the edge of the large washer and a little of the well nut edge to hold it until it tightens and grabs the hole.
Remember 40 inch pounds... it really does not seem like its tight, but, mine are all holding. (used a small craftsman, inch-pound torque wrench)
Take a look at the pictures. The well nut is actually a nut assembly covered in rubber (nitrile in our case)
You have a hole in the plastic fuel tank. The fuel line has a threaded fitting on it, these threads reach the nut assembly on the far side of this little well nut. When it starts compressing, kinda like a rivet, it smashes the rubber out to the sides and seals the hole. This is also where folks get in trouble. They want to make sure it is tight. That is when that extra turn makes the rubber split, and you have to start all over. These well nuts are encased in nitrile rubber, the fuel line pipe threads is what they are saying to put a little form-a-gasket 2. Obviously fuel rated Teflon tape works too.
When the well nut starts to squish.. yes it has a tendency to turn the whole assembly. I was able to put a large flat blade screwdriver on the edge of the large washer and a little of the well nut edge to hold it until it tightens and grabs the hole.
Remember 40 inch pounds... it really does not seem like its tight, but, mine are all holding. (used a small craftsman, inch-pound torque wrench)