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  #1  
Old 04-23-2010, 12:38 AM
krave krave is offline
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Default warm starting trouble

I have a 61 with a 390 Edelbrock 600 cfm carb.ok..here is my problem my car starts find when its cold but when I go on a descent trip like 30 min or so it will start up fine right after I get were Im going but if I try about 45 min to a 1 hour or longer it doesn't want to fire right up.It will turn over fine but fire and by the time it does want to fire the carburetor is flooded if I hold down the gas at this point it fires right up.Any ideas on what I am dealing with I just not sure where to start.Any thoughts or ideas would be greatly appreciated.

Thanks.Gary
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  #2  
Old 04-23-2010, 01:17 AM
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simplyconnected simplyconnected is offline
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Default

Gary, sounds like your carb is pouring gas into your manifold when you shut it off. A carburetor rebuild kit should take care of the problem.

I have had bad experience with neoprene-tipped shut off valves and gasohol. Now, I look for kits with solid brass shut off needles.

Call Edelbrock. They might have a fast and easy solution for you.
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Old 04-23-2010, 04:36 PM
ncbird ncbird is offline
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Default some things to think about

Gary, Dave is probably right but here are some questions that come to mind. Has it always had this problem since you installed the carb or is this something new? If this is new have you changed anything around the time it started?
When you start the car when it is cold do you press the accelerator to the floor once to set the chock and then put it at 1/4 throttle? is this the same way you try to start it when it is hot? Do you have the spacer between the carb and the manifold?
Do a little trouble shooting... after it has sat for the hour after being run pull the air cleaner and pump the accelerator and see if gas shoots out of the accelerator nozzles. If it doesnt then like Dave says the fuel bowl is probably dry. This can be from the fuel draining out or heat pushing it out. If you get no gas at this point try turning the engine over without pumping the gas for a couple of minutes and then see if when you look in the carb and pump the accelerator you get gas. If you do then a simple couple of pumps of the accelerator should start the car. Pushing the gas to the floor is the classic way to start a flooded car by closing the choke and opening the throttle valves and making the engine suck the excess gas down until it can start. My guess is Dave is right and it is starved for gas but if you can answer the above questions when you talk to Edelbrock it will speed the process. I have also seen dirty filters cause similar problems as an fyi. Grant
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