Hey guys, yesterday I went to fire up the old 460, it has been sitting for a while. Any way it is not getting any fuel to the carb, any ideas on what I should be doing to prime it or do I just keep cranking until it starts. It will start for a few seconds if I pour gas straight into the carb but then it just burns all of it and dies again, any help will be apprieciated.

 

Depends what you mean by "sitting for awhile". If you mean a few years then gaskets, hoses, pump diaphrams etc may have siezed or sprung a leak. You probably also would have some gumming up in the carb and any passages where gas would flow, hoses, pump, bowls etc.

If it was just a few months then I would lean to simple gumming up. You might need to clean out the carb bowl and jets etc. A quick way to check if gas is getting to the carb is to disconnect the gas line between the pump and carb. Have an extinguisher handy and put the end of the hose in a bucket to catch any gas. Fire the engine up and check to see if gas is coming out of the hose. Should be a fair stream, maybe pulsating if using old style engine driven pump. If you have gas out the hose then I would suspect the carb.

If you can check for gas in the bowls, do so, there should be gas in the bowls. Also check filters(pump and maybe an in carb filter). If there is gas in the bowls etc, then this leans even more to the carb being gummed up. Check to see if gas sprays into the venturi when you move the accelerator by hand, it should.

Another possibility might be that the distributor may not be advancing while the engine runs due to lack of lubrication. You might want to make sure the advance mechanism moves freely and or lube it.

Good Luck.

Jim Henderson

 

Oh, on second reading of your email, sounds like fuel isn't getting to the carb, so I assume none is in the bowls. To "prime" the carb, disconnect the fuel hose and pump some gas into the fuel line to the carb manually, then reconnect the hose. Of course keep an extinguisher handy. Gas fires are way too much fun.

Jim Henderson

 

 

Sounds like fuel pump inop.

 

I having similar problems with starting my 84 460 engine, I've received help in this forum from some really knowledgeable people. In my wiring diagram, the oil pressure sending unit is first before my electronic fuel pumps. You really need to know if you have mechanical or electronic fuel pump. Checking for gas at the cab its your best bet.