Carb not getting gas?
Team Owner
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
quite a few things.
start by removing fuel inlet line a carb.
caution,
you may need to loosen the line at fuel pump to allow moving of fuel inlet line enough to place a plastic bottle over fuel line.
snug line at pump after placing bottle.
crank engine and see if bottle fills.
then you know if gas is getting to carb.
caution
start by removing fuel inlet line a carb.
caution,
you may need to loosen the line at fuel pump to allow moving of fuel inlet line enough to place a plastic bottle over fuel line.
snug line at pump after placing bottle.
crank engine and see if bottle fills.
then you know if gas is getting to carb.
caution
1967 Pedal Car Champion
Joined: Mar 2020
Posts: 9,135
Likes: 4,244
From: US-PNW
Clogged fuel filter, malfunctioning fuel pump, hose/steel line restriction, empty fuel tank, fuel tank sock collapsed and restricting pickup tube...
There's probably (should be) a fuel filter in the carb fuel inlet fitting. When you remove the fitting to check and clean it, also run a fuel pump test. Have someone crank the engine for 5-10 seconds to see the volume of fuel coming up from the pump (aim it into an empty container). If not a good stream of fuel then something is amiss from the pump back. I assume it's got the small fuel filler hole, so don't know how the '75 gas tank is set up for inspecting the sender's sock or other debris in the tank. You could try removing the inlet fitting at the pump to see if a steady flow of fuel comes from the tank just by gravity alone.
There's probably (should be) a fuel filter in the carb fuel inlet fitting. When you remove the fitting to check and clean it, also run a fuel pump test. Have someone crank the engine for 5-10 seconds to see the volume of fuel coming up from the pump (aim it into an empty container). If not a good stream of fuel then something is amiss from the pump back. I assume it's got the small fuel filler hole, so don't know how the '75 gas tank is set up for inspecting the sender's sock or other debris in the tank. You could try removing the inlet fitting at the pump to see if a steady flow of fuel comes from the tank just by gravity alone.
Burning Brakes
Joined: Oct 2001
Posts: 925
Likes: 200
From: TX
I bet your accelerator pump is shot!! Particularly if you are getting gasoline to the carb.
Sometimes you can put a few drops of motor oil on the accelerator pump shaft to get the seal in the pump to work for a while.
VS
Sometimes you can put a few drops of motor oil on the accelerator pump shaft to get the seal in the pump to work for a while.
VS
