If no fuel is seen squirting into the engine, there is no fuel in the carburetor. To check for vapor lock when the engine is hot and refusing to start, remove the air cleaner and look down into the carburetor to see if you have fuel squirting down into each barrel of the carburetor when you operate the throttle lever. When these wires go bad, they can indicate infinite resistance when hot. The wires can be checked with an ohmmeter to determine the resistance cold and hot. If the spark plug wires have been replaced with "radio resistance wires", these can fail when they get warm and no longer pass enough current to provide sufficient spark. Once warm, the coil will no longer provide a reliable spark. Many times when a coil is going bad, it will start and operate until it warms up. One way to isolate an ignition system problem is to use starter fluid to see if the engine will fire after it is hot and has experienced "vapor lock." If the engine does not even try to start when using starter fluid, there is no spark and further inspection of the ignition system is warranted. Just for HA-HA's.try replacing the condenser. You would not put 50 year old parts on a new car and expect it to perform like new, Just remember people if you want new car performance it might need new or rebuilt parts to perform like a new car, Might be a not a bad idea to send to Skip to have the coil rebuilt, If not try a ICE pack, on the coil, for a few minutes, if it starts it is the coil Start you 46 and let it run for 15minutes, to get it up to operating temp On vapor lock, check you gas cap and make sure it is a VENTED CAP, and make sure you do not have any clogged vent lines, if you have them If squirt is visible, problem is probably elsewhere.Ĭould be a starter issue if it turns slow when warm. If problem is vapor lock, carb will be starved of fuel, no squirt. When engine fails, have you looked down the throat of carburetor while pumping the throttle linkage? Normally you should see two squirts of fuel. My first thought on this is: "How do you know it is vapor lock" ?Ĭoil failure after getting warm (about fifteen minutes driving) is also a common problem with our cars. When the lock occurs and I try to restart, the engine turns over very slowly which will not fire. If that doesn't work what other options are available? I bought the spacer that goes under the carb so it will be raised up and plan on installing that next. New high flow water pumps were installed and I wrapped the fuel line with special heat resistant tape. My 46 Ford vapor locks after driving 15 minutes and shutting down the engine.
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