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1985 5.7 v8 smoke black. Any guesses?

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Old April 10th, 2019, 4:15 PM
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Default 1985 5.7 v8 smoke black. Any guesses?


Got black smoke from tail pipe.
Old April 10th, 2019, 4:24 PM
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Tap on the carb with a soft hammer lightly. Float is probably stuck.
Old April 10th, 2019, 4:56 PM
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Is any spray, gas cleaners gonna help or any other way at all? Kinda scared hammering on carb.
Old April 10th, 2019, 5:00 PM
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TAP on the carb with the handle of a screwdriver or soft hammer. I suspect the float is stuck, other than taking the top off, that's the short solution.
Old April 10th, 2019, 7:12 PM
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Will try this weekend. With spray clean up. Thanks for the reply.
Old April 14th, 2019, 10:38 AM
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choke stuck , float struck open-dropped filling the carb with fuel, not sure if that vehicle has a purge valve if diaphragm is torn it will pull fuel from the carb.
Old April 14th, 2019, 11:02 AM
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I think there is purge valve on diagram on air cleaner.
Old April 14th, 2019, 12:17 PM
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3/8 hose plugged into the top of the front on carb
Old June 17th, 2020, 6:52 PM
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Originally Posted by texrex
choke stuck , float struck open-dropped filling the carb with fuel, not sure if that vehicle has a purge valve if diaphragm is torn it will pull fuel from the carb.

Hey can anyone tell me what is that thing seating on the middle left. I can name crank pulley, generator and water pump and that thing is probably air injection pump? Is there filter in it?




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