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Old Sep 21, 2014 | 10:42 PM
  #1  
78machinist's Avatar
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Default can't figure it out

I have a 78 f150 351m has brand new carb dist. Everytime I go to start it it fires right up but only runs for few min then floods itself out
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Old Sep 23, 2014 | 11:07 PM
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Do you see any gas coming out from carburetor. Check to make sure the float doesnt get stock on the open position. I know its new but you never know.
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Old Sep 24, 2014 | 09:21 PM
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maybe a choke sticking on ?
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Old Oct 2, 2014 | 12:01 AM
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Hello, 78machinest. Are you sure it's flooding? Do you see leakage, smoke from exhaust, wet spark plugs? In other words, what makes you say its fooding? I only ask this because you dont say. If the plugs are dry, I would look at running lean or out of fuel. I would check plugs first. Good luck....Renney
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Old Oct 7, 2014 | 12:05 AM
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Default Flooding Issue

Hopefully you got your problem resolved. If not and if it is flooding, check the choke. The choke should be opening and the butterfly completely open when the engine is warm. If it isn't loosen the choke and rotate it to open the butterfly. A choke that doesn't open will cause flooding, as will one that is set too far to cold. If its an electric choke, if its not wired properly it might not open.

If you are still having a problem, post more information and I'm sure someone can help.
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Old Nov 11, 2014 | 02:25 PM
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Try running a can of sea foam through it.Take off the brake booster vacuum hose while its running and gently pour the sea ffoam into the brake booster vacuum hose a little at a time until the can is gone and so will 36 years of carbon build up.

It's a plus to run a can of sea foam through the tank, it did wonders for my 1982 f-150.I usually run sea foam once a year in the spring. It isn't by any means a fix all but it does de-carbon your motor and fuel system all through and at the same time erases a ton of issues to do with the fuel system any way.

It wouldn't hurt to spray some lubricant like PBS blaster or what you use on all the parts of the carburator that move on the exterior of the carb, this also helps the carb perform smoother in the mechanical part of it any way.Made life easer for me.cant hurt.

Last edited by Half ton; Nov 11, 2014 at 02:28 PM.
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Old Nov 12, 2014 | 11:50 AM
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Originally Posted by Half ton
Try running a can of sea foam through it.Take off the brake booster vacuum hose while its running and gently pour the sea ffoam into the brake booster vacuum hose a little at a time until the can is gone and so will 36 years of carbon build up.

It's a plus to run a can of sea foam through the tank, it did wonders for my 1982 f-150.I usually run sea foam once a year in the spring. It isn't by any means a fix all but it does de-carbon your motor and fuel system all through and at the same time erases a ton of issues to do with the fuel system any way.

It wouldn't hurt to spray some lubricant like PBS blaster or what you use on all the parts of the carburator that move on the exterior of the carb, this also helps the carb perform smoother in the mechanical part of it any way.Made life easer for me.cant hurt.
X2
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