Re: KPack
Posted by kevinpackard On 2021/8/21 0:01:11
Finally had a few minutes today to deal with the annoying fuel leak back at the fuel tank fitting. It's been slowly dripping fuel since the last time I messed with the tank. I have to keep the garage door open all the time to let the smell out....very annoying.
I finally used up enough gas so the tank was empty enough to not come pouring out when I removed the fuel line. I lifted the car from the driver's side, blocked the wheels on the passenger, and held the car up with two jack stands and the jack as redundancy. Removed the fuel line from the tank and drained the line. Then used a tubing cutter to cut the fuel line a couple inches back.
Inspection of the old line showed what appears to be a split in the line, though I might just be looking at how it was made. The inside has varnish and junk on the walls. I probably should have replaced the whole line front to back, but the varnish doesn't seem to be causing a problem.
I used a new flare, fitting, and 2 inches from a pre-made coated steel line (NAPA), and connected that to the old fuel line with high pressure 5/16" fuel hose and clamps. The flexible hose makes it MUCH easier to get the flitting to line up with the tank. The old fuel line was incredibly hard and wouldn't bend or move at all.
As an extra precaution I coated the threads with gasket sealer for fuel applications (Permatex).
I did this same procedure on the front of the fuel line by the fuel pump and it has worked great. I let the car back down and watched for leaks (it was leaking before I lifted the car up). I took it for a quick drive to get the gas moving, then let it sit to see if it would leak. So far so good, and my garage smells amazing now.
As a side note, it appears that gas is coming out of the fuel filler if the tank is more than halfway full. I put MMO in the gas, so it is darker, and it's all over my fender and stripping the wax. The fuel tank is new, fuel filler looks okay, and the gas cap is new. Is this normal? How do I prevent fuel from getting all over the paint?
-Kevin
Attach file:
Split fuel line.jpg (81.01 KB)
Possible split in the flare.jpg (54.37 KB)
Repair done.jpg (137.75 KB)
Leaking fuel.jpg (69.39 KB)
Fuel filler.jpg (91.43 KB)
Gas cap.jpg (92.34 KB)
I finally used up enough gas so the tank was empty enough to not come pouring out when I removed the fuel line. I lifted the car from the driver's side, blocked the wheels on the passenger, and held the car up with two jack stands and the jack as redundancy. Removed the fuel line from the tank and drained the line. Then used a tubing cutter to cut the fuel line a couple inches back.
Inspection of the old line showed what appears to be a split in the line, though I might just be looking at how it was made. The inside has varnish and junk on the walls. I probably should have replaced the whole line front to back, but the varnish doesn't seem to be causing a problem.
I used a new flare, fitting, and 2 inches from a pre-made coated steel line (NAPA), and connected that to the old fuel line with high pressure 5/16" fuel hose and clamps. The flexible hose makes it MUCH easier to get the flitting to line up with the tank. The old fuel line was incredibly hard and wouldn't bend or move at all.
As an extra precaution I coated the threads with gasket sealer for fuel applications (Permatex).
I did this same procedure on the front of the fuel line by the fuel pump and it has worked great. I let the car back down and watched for leaks (it was leaking before I lifted the car up). I took it for a quick drive to get the gas moving, then let it sit to see if it would leak. So far so good, and my garage smells amazing now.
As a side note, it appears that gas is coming out of the fuel filler if the tank is more than halfway full. I put MMO in the gas, so it is darker, and it's all over my fender and stripping the wax. The fuel tank is new, fuel filler looks okay, and the gas cap is new. Is this normal? How do I prevent fuel from getting all over the paint?
-Kevin
Attach file:
Split fuel line.jpg (81.01 KB)
Possible split in the flare.jpg (54.37 KB) Repair done.jpg (137.75 KB) Leaking fuel.jpg (69.39 KB)
Fuel filler.jpg (91.43 KB)
Gas cap.jpg (92.34 KB)
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