Re: Morticus' Packard 200 Deluxe Touring Edition

Posted by TxGoat On 2023/7/22 20:47:30

From here, it looks to me like most of your issues are related to very old, rotten fuel and probably some corrosion or old fuel residue remaining in the gas tank, fuel line, and and all screens and filters, and the carburetor and fuel pump. The fuel pump may be fouled with gum and varnish, and it's likely the diaphragm is in poor condition. It doesn't take much to foul fuel pump valves, filters, screens, and carburetor parts. It might be productive to remove the fuel tank and inspect the interior, and clean as necessary. The entire fuel line may be rusty or gummy or both. Disconnecting it at both ends and putting some solvent, such as B-12 Chemtool, through it, then blowing it out with compressed air, may clear it. B-12 will attack paint, so don't spill or blow it on finished surfaces.

I suspect that the engine issues will clear up with some run time with clean oil and a dependable supply of clean fuel. If you continue to have a dead miss on any one cylinder, further investigation would be indicated. Don't overlook spark plugs and plug wires as a source of problems, or something like a cracked or carbon tracked distributor cap. Older radio suppression type plug wires can look like new and still not function. Sometimes old plug wire boots can decay and become conductive.