Boats For Sale:
Smoking/ rough at idle |
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Oleeolson 
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Joined: March-17-2006 Location: United States Status: Offline Points: 17 |
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 Topic: Smoking/ rough at idlePosted: August-07-2006 at 2:16pm |
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1985 351 ford 500 hours
Smokes and runs rough at idle, seems fine at higher speeds with no smoke. Has newer carb which I rebuilt just to be sure. Newer wires, rotor, points, cap and plugs. Accelerates and runs fine at high speed Really puzzled |
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David F
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Joined: June-11-2004 Location: United States Status: Offline Points: 1770 |
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Posted: August-07-2006 at 4:18pm |
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Is the smoke black? If so, could be that the carb is flooding the engine while at idle...a relatively common problem. A new fuel filter and carb rebuild should fix the problem.
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Tim D
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Joined: August-23-2004 Location: United States Status: Offline Points: 2641 |
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Posted: August-07-2006 at 5:02pm |
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Lower the float.
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Tim D
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Munday
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Joined: August-17-2004 Location: United States Status: Offline Points: 538 |
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Posted: August-07-2006 at 11:44pm |
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Possible power valve not torqued to spec or cracked
Munday |
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David F
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Joined: June-11-2004 Location: United States Status: Offline Points: 1770 |
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Posted: August-08-2006 at 10:01am |
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You know, I just reread the original post and he said already rebuilt carb, so I agree that the float setting is probably too high. My bad.
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Hollywood
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Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13516 |
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Posted: August-08-2006 at 10:03am |
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Well if David says float...it probably is. That is what I instantly thought as well, although I'm no expert.
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waketique78
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Joined: September-15-2005 Location: United States Status: Offline Points: 36 |
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Posted: August-08-2006 at 11:35pm |
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idle air screws
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1978 Ski Tique, Skylon, Fatseat And Sacs for ballast
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GottaSki
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Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: August-09-2006 at 7:01am |
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Could be mismatched gaskets on the PV or drippy venturis from float/needle problem.
There is really nothing you can do to your air screws to make the boat blow smoke. |
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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