My 90 RX7 GXL has a small gas leak that appears to be coming from around the front left of the gas tank. The leak is small, leaving a small puddle of gas under the car after sitting overnight. I haven't looked under the car yet, but I'm suspecting that the leak is coming from one of the rubber fuel lines going to the tank. I am the original owner of the car, and have never changed any of these hoses. There seems to be a lot of plumbing back there due to the gas supply and return lines, check valves, and so on. Before I put the car on the lift, I'd like to buy fuel injection hose but am not sure what size hoses are back there. I think it's 5/16" -- Is this the right size? Has anyone had any similar problems, and can perhaps point me to the potential trouble areas back there?

Thanks,
Hot_Dog
90 RX7 GXL

 

DO NOT DRIVE THE CAR until you find out just where the gas is leaking and fix it..... any farther than that I can't help ya.

 

I been driving my Acura ever since I discovered the gas leak. Although the leak is only a small drip at this point, I didn't want to take the change of a high pressure fuel line rupturing while I was driving. I bought some 5/16" fuel injection hose yesterday, and am planning on getting the RX7 on the lift to fix the leak. Hopefully, 5/16" is the right size hose.