carb rebuild
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Elder User
Joined: Nov 1999
Posts: 796
Likes: 3
From: Anderson Northern Ca
carb rebuild
Recently rebuilt carb on 1973 F350 -390 motor, stock 2bbl intake & stock motorcraft 2 bbl carb . The rebuild went good and the truck starts right up,idels perfect, runs well with a little hesitation off a dead start. The problem starts when I turn the truck off then try to restart in a few minutes,it wont start until you floor the gas pedal and crank the motor about 15 seconds.It will start right up emediatley after shutdown if I dont give it any gas, but once I wait more than a few minutes, it wont start unless I floor the gas pedal./////////// any ideas are appreciated.
Senior User
Joined: Jun 1999
Posts: 103
Likes: 0
From: Palo Alto, CA
carb rebuild
If flooring the gas pedal while cranking gets it started, could be that the carb is slowly leaking gas from the bowl into the intake. When you go to start it after a while, the engine is flooded and the bowl is dry. To verify this, drive the truck awhile and stop in front of your house. Then pull the carb off the motor and look on the bottom for gas.
I hope this helps.
Jim
I hope this helps.
Jim
Senior User
Joined: Oct 1999
Posts: 194
Likes: 0
From: Washington
carb rebuild
Just rebuild 2 carbs in the last few days and was wondering about this little flapper valve on the front of the carb. when it suppose to cover the hole and the reason. A long way from any expert on carbs. Also the was the mention of gas leaking out of the bowl and into the intake. What must be done to correct this. My 68 was doing this also. That is hard starting sometimes.
