No Fuel to Carb in a 4.3

Capt Big

Cadet
Joined
Apr 17, 2010
Messages
19
I figure I start a new thread on this issue. I have a 88 Sunbird Corsair with a OMC I/O motor with GM block 4.3 Liter v6.

The issue I am having is I?m not getting any fuel into the carburetor so I?m thinking it?s the fuel pump. I have sucked on the fuel line coming from the gas tank and I get fuel ( I know not the smartest idea) I primed the new water/fuel separator filter but as I said fuel isn?t moving through the lines and up to the carb. The lines aren?t clogged. Is this the fuel pump like I suspect or could it be something far worse.

Thanks for any insight you could give
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: No Fuel to Carb in a 4.3

Disconnect the fuel line from the carb. Put a hose on it and put it in a container and turn the engine over and see if the pump will pump.
If the fuel filter in the carb inlet, or the needle valve is plugged, it will not pump gas into the carb or to it.
 

full stringer

Petty Officer 2nd Class
Joined
Nov 8, 2009
Messages
184
Re: No Fuel to Carb in a 4.3

i agree with don, however you stated no fuel is moving through the lines?? so possibly the anti syphon valve ( if equipped) could be stuck on the fuel tank as well. take off the hose from the tank and spray some carb cleaner into the fitting 2 quick shots the ball should move freely good luck!!
 
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