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Old May 7, 2003 | 08:58 PM
  #1  
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carb problems

I have a 1976 F-150. My problem is adjusting the carb. one side of the engine blows out white smoke. does it need more fuel or less. Any advice on carb adjustment is greatly appreciated.
 
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Old May 8, 2003 | 01:08 AM
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carb problems

Welcome to FTE-
I do need a little bit more info- how much white smoke, does it linger a little, only in certain weather conditions, etc. Also, have you already tried adjusting the idle mix screws?
 
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Old May 8, 2003 | 09:24 AM
  #3  
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carb problems

It blows just enough to see it. I have adjusted the screws some but I am not shure what it needs. I don't think it is an engine problem because it still smokes the same when the engine gets hot, but I am a newby. I hope this helps some
 
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Old May 8, 2003 | 02:06 PM
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carb problems

That isn't a carb issue. Do a commpression check, and inspect you spark plugs while you are at it. You probably have a leaking head gasket.
 
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Old May 8, 2003 | 02:27 PM
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carb problems

Or it could be the vacuum modulator leaking a small amount of tranny fluid into the intake.
 
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Old May 8, 2003 | 10:25 PM
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carb problems

I agree with millertime300 you are most likely passing coolant into the cylinders

Redneck smoke diagnostic's

Black smoke - excess fuel running rich

Blueish white/gray smoke - oil burning

White smoke - coolant burning
 
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Old May 8, 2003 | 10:45 PM
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carb problems

If you run antifreeze in you radiator and let your truck idle in thedriveway for a while you might even notice the liquid that dips out of the exhaust is greenish.

Does it ever have trouble turning over after it has set for a while? Do you have bubbles surfacing in your radiator fluid?
 
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Old May 9, 2003 | 05:38 PM
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Thumbs up carb problems

Thanks guys ...I think the consensus is the head gasket. It does blow out green antifreeze. It is leaky and old, so I am going to replace it and see if it improves.
 
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