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Shooting gas out the top of the carburetor

C

correctcraft

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Ran fine when parked, then about a month later it's turning over fine but spraying gas out the top of the carb and won't start. I'm a pretty good Machanic but this is my first owning a 93 correct craft.
 
without knowing what engine is installed, this is just a guess....either the needle valve is stuck open or the fuel pump diaphragm has failed.
 
makomark said:
without knowing what engine is installed, this is just a guess....either the needle valve is stuck open or the fuel pump diaphragm has failed.
Click to expand...
351 5.8, holley 650, but first yes thanks for your reply, it only does it when I'm turning it over, I did pull the ends off the carb and check the accelerator pump and float, no blow through, and the secondary with float, pretty clean. Anything helps. O and yes I can watch it spray out the jets into the engine, but will not start and pushes it back out the carb. It's crazy,
 
If that's what you think, then a compression test would be a minimum and a leak down test even better...

how old is the engine?

Any idea how many operating hours?
 
makomark said:
If that's what you think, then a compression test would be a minimum and a leak down test even better...

how old is the engine?

Any idea how many operating hours?
Click to expand...
OK awesome yeah that is a good idea to do a leak down and compression, but no idea on engine, when's the last time it's been torn down, it's got fresh paint, but I know that dont mean nothing. I'm gonna do a compression check here in a bit, thanks.
 
on the original problem - if you believe the needle and seat (and float) are in good condition and properly adjusted, about the only thing left to check is the fuel pressure at the inlet to the carb...
 
Soooooo....I pulled the heads and just not what I wanted to see, water in the cylinder from the manifold port having a whole in it and leaked through the exhaust. Unsatisfying...now on the hunt for them manifolds...
 
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