Re: Fuel shortage issue :-(

Posted by TxGoat On 2024/3/2 7:17:14

The plug wire boot may be allowing a spark to jump from the boot to the plug body. Dirt on the plug insulators can aggravate the problem. The spark plugs need to be clean and have good gaskets and the cylinder head where the plugs seat needs to be clean and free of rust. Seepage from the water outlet gasket on the head could discolor the plug.

Fuel supply issues from a variety of causes often get worse as things warm up. Fuel filters added to the suction side of the fuel system often give trouble.

A clogged fuel tank vent can cause the problem you are having. Any restriction on the suction side of the system, such as dirt, a dented fuel line, any screen or filter, but especially any added, non-original filters, are likely culprits. Missing heat shields, mis-routed fuel lines, stuck manifold heat valve, and leaking exhaust gaskets can cause problems.

A failing fuel pump, loose fuel pump to block fasteners, or missing heat insulating washers and sleeves at the fuel pump mounting can cause problems.

Late timing, leaking intake manifold gaskets, and carburetor issues can also contribute.