Recent content by Ratdaddy

Okay, thanks. I'll try that with the fuel shutoff valve. I'll also put a gage on the fuel pump and check that.

My M38A1 has the correct YS-950S carburetor on it which has a vacuum accelerator pump so pumping the gas pedal doesn't do anything. It also has all of the fording gear on it. Part of that fording system is a tube that runs from the breather crossover pipe to the top of the carburetor just...

Yeah. I'm pretty sure it's because the gas runs back toward the gas tank. And I'm wondering if a weak fuel pump could be weak enough to not be able to pump the gas all the way back up to the carb but is strong enough when the engine is running to keep it running fine. Problem with that theory...

All new plugs, new wires, new points, coil, condenser, rotor and cap. Everything on this Jeep has been rebuilt including engine. Only thing on it not new is the fuel pump which was a take-off.

Carburetor is a professionally rebuilt unit. Anyway, I took the accelerator pump apart and looked at it. Everything is brand new and the diaphragms, springs, needle valve, etc. are new.

Yes. Choke is hooked up and I try starting it with full choke.

My newly restored M38A1 now will not start (except with starter fluid) when cold or after it has been sitting for two or more hours. It starts fine if it has been run within the last hour or so and it runs great with plenty of power and acceleration once it does start. I checked the vacuum at...