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Car Forum / Antique and Collectibles / Studebaker / May 2005No fuel in carburetor
Well, I guess my engine was afraid I was thinking about the fuel additive, because it's refusing to pull in gas now. I believe (hope) that the problem is just that since I hadn't started it in almost a month, that the gas just drained out and now it can't get a vacum. Neither pumping the accelerator nor closing the carb's butterfly did any good. I took the gas line off the carb and it was bone dry, so I know the problem is that the gas isn't flowing. There's fuel in the fuel pump (sediment bowl, at least). Am I now to the point where I have to pour a little gas in the carb to help get the suction going, or is there another step I should try first? I've got the original straight-6 with a Cathcart dual carb. Thanks. First make sure there is gas in the tank. Then when you have the line off the carb have someone hold the end so that its pumping into a container. If no gas pumps when the starter is activated, then its likely either none is in the tank or the pump is not pumping. Of course you may also have a plugged line. Then you will need to repair or replace the line. The car should start and run on some gas poured into the carb. Just be careful of any back fires. By the way when cranking the starter only do so for short periods of time. You can overheat the starter with prolonged cranking. > Well, I guess my engine was afraid I was thinking about the fuel additive, > because it's refusing to pull in gas now. I believe (hope) that the [quoted text clipped - 8 lines] > > Thanks. Bad news John. You have either a stripped or broken timing gear.  Signaturethanks, Jerry Forrester remove 'no spam' to respond > Well, I guess my engine was afraid I was thinking about the fuel additive, > because it's refusing to pull in gas now. I believe (hope) that the [quoted text clipped - 8 lines] > > Thanks. How did you come to that conclusion ? If he still has compression, it's not the gear, could be just a bad pump. > Bad news John. You have either a stripped or broken timing gear. SignatureJP/Maryland Studebaker On the Net http://stude.com My Ebay items:http://www.stude.com/EBAY/ 64 R2 4 speed Challenger (Plain Wrapper) 63 R2 4 speed GT Hawk 55 Speedster 50 2R 10 truck He said he cant get a vacuum. I ass-u-me ed he meant there's no air being sucked down the carb throat. What other vacuum could he mean? Signaturethanks, Jerry Forrester remove 'no spam' to respond > How did you come to that conclusion ? If he still has compression, it's > not the gear, could be just a bad pump. > > > Bad news John. You have either a stripped or broken timing gear. I though he meant he could not get suction on the fuel pump. > He said he cant get a vacuum. I ass-u-me ed he meant there's no air being > sucked down the carb throat. What other vacuum could he mean? SignatureJP/Maryland Studebaker On the Net http://stude.com My Ebay items:http://www.stude.com/EBAY/ 64 R2 4 speed Challenger (Plain Wrapper) 63 R2 4 speed GT Hawk 55 Speedster 50 2R 10 truck Sorry if I wasn't clear. My assumption is just vapor lock somewhere in the line. The car & pump ran fine up until the last time I started it about a month ago. Turning over the starter and pumping the accelerator doesn't seem to pull any additional gas into the fuel pump, which is why I said I wasn't getting any suction. "Jerry Forrester" <forr62@bellsouth.net> wrote in news:R48je.1789$lQ3.1212 @bignews5.bellsouth.net: > He said he cant get a vacuum. I ass-u-me ed he meant there's no air being > sucked down the carb throat. What other vacuum could he mean? Disconnect both lines (inlet and outlet) from the fuel pump. Hook a fuel pump pressure gauge to the outlet side of the fuel pump. Spin the engine over with the starter. Get back with us with your findings. Signaturethanks, Jerry Forrester remove 'no spam' to respond > Sorry if I wasn't clear. My assumption is just vapor lock somewhere in the > line. The car & pump ran fine up until the last time I started it about a [quoted text clipped - 7 lines] > > He said he cant get a vacuum. I ass-u-me ed he meant there's no air being > > sucked down the carb throat. What other vacuum could he mean? Good news! The problem was just that it was sucking air instead of fuel. The sedemint bowl was only half full, so we filled it to brim with gas, and the hit the starter. It finally started spitting fuel, so we hooked everything back up and started the engine. We let it run for a while to see if it would start sucking gas from the tank, and it's running fine now. I was hoping it would be something simple. Is this normal when it sits for a month without running, or does this mean there's a bad seal in the fuel pump? "Jerry Forrester" <forr62@bellsouth.net> wrote in news:u3%ke.14190$lQ3.995 @bignews5.bellsouth.net: > Disconnect both lines (inlet and outlet) from the fuel pump. Hook a fuel > pump pressure gauge to the outlet side of the fuel pump. Spin the engine > over with the starter. Get back with us with your findings. > Good news! The problem was just that it was sucking air instead of fuel. > The sedemint bowl was only half full, so we filled it to brim with gas, and [quoted text clipped - 5 lines] > a month without running, or does this mean there's a bad seal in the fuel > pump? Might want to rebuild the fuel pump if you do not know if it has been done recently. The old rubber does not stand up as well to modern fuel as does the Buna-N that is used in most new production rebuild kits. nate |
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