LastDeadLast
Jedi Knight
Offline
OK, so the other day, I was driving (calmly) about 45mph at part throttle and the car just stopped running. It felt like three cylinders just went out, but it wouldn't run at all unless you gave it 50% throttle or more. I managed to get it to the side of the road before it completely died. Once parked, I was able to get it running once, but it died again and I wasn't able to start it again. Thinking it was a fuel issue, I pulled one of the lines from the carbs and cranked it. No gas. Thank you AAA.
I brought it home, and checked everything: fuel line runs free, changed the fuel filter, checked the mixture, floats, check valve, the dizzy, plugs and wires. I couldn't find anything that really pointed to a problem. I also took the fuel pump apart, but didn't find anything wrong, however, it seemed that the longer the engine ran the worse it got.
I honestly thought the problem might be the fuel lines getting too hot, but today I got an in-line fuel pressure gauge installed and fired it up. At first I was hitting right at 2 psi. But as I left the car idle for a while, the pressure went down to less then 1 psi. I shut the car down and manually primed the pump, and the gauge goes up to 2 psi as I pump it.
Thinking I had a bad pump, I replaced it with the pump that originally came on the car when I bought it (a non-AC pump made in Canada). I fired it up again to find that I was back at 2 psi. However once the car idled for about 15 minutes, the same thing happened again to the fuel pressure. Interesting though, it never started running bad like the other day.
Do I have something wrong with my pump here? Could the gauge be bad? It's a brand new Earl's Plumbing (Holley) gauge that is oil filled.
Thanks for any assistance!
-s
I brought it home, and checked everything: fuel line runs free, changed the fuel filter, checked the mixture, floats, check valve, the dizzy, plugs and wires. I couldn't find anything that really pointed to a problem. I also took the fuel pump apart, but didn't find anything wrong, however, it seemed that the longer the engine ran the worse it got.
I honestly thought the problem might be the fuel lines getting too hot, but today I got an in-line fuel pressure gauge installed and fired it up. At first I was hitting right at 2 psi. But as I left the car idle for a while, the pressure went down to less then 1 psi. I shut the car down and manually primed the pump, and the gauge goes up to 2 psi as I pump it.
Thinking I had a bad pump, I replaced it with the pump that originally came on the car when I bought it (a non-AC pump made in Canada). I fired it up again to find that I was back at 2 psi. However once the car idled for about 15 minutes, the same thing happened again to the fuel pressure. Interesting though, it never started running bad like the other day.
Do I have something wrong with my pump here? Could the gauge be bad? It's a brand new Earl's Plumbing (Holley) gauge that is oil filled.
Thanks for any assistance!
-s