HELP carb leak

Old 01-18-2008, 07:41 AM
  #1  
bigs1975
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Default HELP carb leak

I have a 4779 holly that for some reason decided to leak fuel all over my intake just from sitting a few days.I did go through it about a week ago.It had a stumble in it when going wot on the trans break.After pulling it off and tearing it down I found a few problems.The main body to base plate gasket was too small,the gasket was covering part of the venturies,It had a 25 primary squirter and 37 secondary,It had 76 jets in the front and 82 rear.So I squared the jets at 82 and put the right gasket in.I didn't touch the pumps on it.Set the floats and it ran great.So it set for a few days and I went to start it.Flooded it and fowled the plugs.Don't know how.Last night I pulled the hood off and saw fuel all over the intake and around the base plate and main body.Any idea what happened?
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Old 01-18-2008, 12:24 PM
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bjuice
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well the only place fuel is stored while the car is shut off is in the bowls..so its gotta be linked to that...it can leak around a bowl and run to other parts lower on the carb making it look like its coming from somehwere else..
i say start with bowls and make sure needle seat was not stuck while the car was running causing hung up floats with too much extra fuel in bowls.
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Old 01-18-2008, 03:07 PM
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bigs1975
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Thanks Brian.Thats what I was thinking too.Floats are good.No fuel coming up through the vents or pooring into the motor when the pump is on.It has the brown gaskets on it and I reused them.I think I'll just get some new gaskets for the bowls and metering blocks and see what that does.


Shannon
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Old 01-19-2008, 11:49 PM
  #4  
mopar1968
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Default leak

just to throw something to you, i had the same problem, gas on rear of intake, took carb off twice, found fitting where it goes in carb had a small nick in it, pressure from pump would cause it to leak on intake. something that might help.
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Old 01-21-2008, 06:23 AM
  #5  
bigs1975
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Thanks guys,I found it.Bowl gaskets.
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