I took a few rides in the roadster recently where there were steep uphill sections. After a brief period in thes uphills, the engine would die out. I’m ***uming this is a fuel starvation issue attributed to float levels. The engine runs great everywhere else. Not sure if this matters but it’s a three deuce Rochester 2g intake in a 327 Chevy. Any advice on adjustments or if I should look at another issue would be greatly appreciated. Thanks
How does it fire up when re-starting? Is it a flood start? Or no fuel type start? Do you need to hold the pedal to the floor while cranking or pump it a couple times? It could be float too high or too low.
Float level unlikely. Problem with fuel tank, fuel lines, fuel filter or fuel pump more likely. Check that you are getting adequate fuel delivery.
Easy answer for the fuel pickup in the tank question. How much gas was in the tank? If it was pretty low, put a reasonable amount of gas in the tank and run up the same hill again if it is close enough. Then it comes to new build or newly installed carbs and intake and how much has it been driven to show any other fuel starvation issues. Back in the mid 70's I bought a 57 Chevy panel with a pretty hot 327 in it. 202 heads, Engle cam, 12.5 Jahns pistons and a dual 4 early Corvette intake. It ran pretty strong but when you launched hard it would act like it was running out of gas just when it was really pulling hard, shift to second and it would pull hard until just about when you went to third. finally I took the whole fuel line to the carbs setup off and apart and the fitting that the Tee to feed both carbs screwed into had a 1/8 orifice and a buddy said it was a natural Gas fitting for a heater. A quick trip to town to get a proper fitting and that thing pulled hard and drank gas like a bar fly drinking half price pitchers at Happy hour. After making sure it had enough gas in it I'd check the whole fuel system from tank to carbs for anything that might be an issue, Things like a kink in a hose, twisted hose, Twisted fuel line from someone not paying attention when they either tightened or loosened the fitting (like those twisted lines going to A quadrajet when someone turns the nut for the filter without taking the line loose first) kink in a fuel line from when it wasn't bent right. Smashed fuel line from being pinched between something. The second helicopter I went though a Crash in in Nam was an OH13 that had just been completely rebuilt by an AV maintenance unit in Da Nang We were out west of Da Nang in it and had just cleared the top of a ridge when it caughed and died from running out of fuel. After a real hard landing I got out and checked the tanks. Right tank was bone dry and the left tank was full. After it was hauled back some of our guys went out and looked it over and our crew chiefs lifted the cover off the braided stainless line to the left tank. That line was twisted into a knot. Someone had already siphoned all of the gas out of the left tank. Pineapple (one of our scout crew chiefs with A -1/9 Cav) pulled his little Polaroid out and took some shots of that fuel line and off we went to find our six. Word was that he handed out quite an *** chewing to someone in that maintenance unit.
Thanks for the responses. I’ll try the simplest first and top up the tank. Was about 1/4 full. I’ll also check filter although I’m not sure how that would affect performance only when I’m on a steep incline. I checked before restarting and got a stream of fuel from the jets. Carbs were rebuilt by me a few years back. This is the tank I’m using, curly transferred to an edelbrock mechanical pump via 3/8 aluminum fuel line.
If the filter is partly clogged, then the added fuel demand of going uphill can result in fuel starvation. Of course this might also show up if you just accelerate at full throttle on level ground.
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