Still wrestling with this truck. Every brake line was rusted and breaking so did them all (flex lines too). I dropped the tank because for each gallon I put in, I had a gallon on the driveway over a few days. Dropped the tank, bought a southern tank (which turned out to be 34 gallons instead of 22 gallons) and pulled the lines off the pump. Then, while I'm trying to get the brake lines nice and neat, I break all the plastic clips but this is also showing that the fuel lines are rotted through at about each clip. So, I pull that all out up to two braided lines from the TBI.
Then more fun, the braided line is fused to the steel line nut. Really on there. Can't put a torch on it (might blow up truck). So, I think I'll pull the lines off the TBI. Some bright guy has a clamp mounted on the back of the engine that keeps those braided lines very snug. So snug, you can't pull the braided lines with connectors through. Also, my hands can barely feel the nut on the bracket. After literally 2 hours of turning a wrench 10 degrees at a time, I get the bracket off and release the braided lines. I got the nut off the braided line (return side) using PB blaster and vice grips.
So, my question: the 5/16" inverted flare nut seems to fit into the braided line but goes in really far. Is this the right fitting for this kind of line or would be it be a metric fitting like on the fuel pump lines? Were the braided lines from the TBI stock or were they steel lines? Don't have much history on this truck. Was sitting in a farm field for too many years just rusting from the bottom up.