Excessive Carb Flooding
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Elder User
Joined: Jun 2001
Posts: 913
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From: Canada
Excessive Carb Flooding
Hi Folks -
I am not a carb genius, but I know some of you folks out there are, so I am posting for some help.
I have a 1979 Ford F-150 with a 302. It originally had a Motorcraft 2150 2-V carb which I have replaced as it had never been changed since it was new and it was acting up a bit. I installed a rebuilt one of the same model.
It has ran OK for about a month, with some occaisional hesitation or bogging out at full pedal - I figured it was minor adjustment or a vaccuum problem.
Yesterday, it stalled out completely on me, and now I can't keep it running - so I checked things over today and discovered the problem - it is getting TOO much fuel.
The two round hollow piller post things (sorry, I am not sure what to call them) that come up on each side of the carb, in front of the choke, are FILLING up with fuel and it is being dumped into the carb causing it to FLOOD and thereby stalling the motor.
I thought it might be a stuck float, so I took the top of the carb and had a look. It appeared to be OK - I say 'appeared' cause I am not an expert.
So are there any ideas on what my problem could be?
I suspect:
1) Improperly adjusted Float
2) Malfunctioning Float
3) Wrong Float
4) Something wrong with the Fuel Bowl Vent Valve?
5) Vaccuum issue?
ANY and ALL help is greatly appreciated as right now I am walking as my truck is going no where fast.
Thanks!
Alex
I am not a carb genius, but I know some of you folks out there are, so I am posting for some help.
I have a 1979 Ford F-150 with a 302. It originally had a Motorcraft 2150 2-V carb which I have replaced as it had never been changed since it was new and it was acting up a bit. I installed a rebuilt one of the same model.
It has ran OK for about a month, with some occaisional hesitation or bogging out at full pedal - I figured it was minor adjustment or a vaccuum problem.
Yesterday, it stalled out completely on me, and now I can't keep it running - so I checked things over today and discovered the problem - it is getting TOO much fuel.
The two round hollow piller post things (sorry, I am not sure what to call them) that come up on each side of the carb, in front of the choke, are FILLING up with fuel and it is being dumped into the carb causing it to FLOOD and thereby stalling the motor.
I thought it might be a stuck float, so I took the top of the carb and had a look. It appeared to be OK - I say 'appeared' cause I am not an expert.
So are there any ideas on what my problem could be?
I suspect:
1) Improperly adjusted Float
2) Malfunctioning Float
3) Wrong Float
4) Something wrong with the Fuel Bowl Vent Valve?
5) Vaccuum issue?
ANY and ALL help is greatly appreciated as right now I am walking as my truck is going no where fast.
Thanks!
Alex
Thread Starter
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Elder User
Joined: Jun 2001
Posts: 913
Likes: 0
From: Canada
A big thanks goes out to Torque1st for all his help.
I got the problem fixed!
The plastic float was fine - though I made a minor adjustment to it.
The needle valve was fine, but the seat had some debris in it - likely junk from the old fuel line since I have a new tank. So it looks like I will be putting in some new fuel line.
Cheers!
I got the problem fixed!
The plastic float was fine - though I made a minor adjustment to it.
The needle valve was fine, but the seat had some debris in it - likely junk from the old fuel line since I have a new tank. So it looks like I will be putting in some new fuel line.
Cheers!
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
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Lead Driver
Joined: Nov 2000
Posts: 6,648
Likes: 352
From: Albuquerque
Flush it out after replacing things. Any crud that's dislodged will head right back to the inlet seat.
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