Tim Knaup

I had a couple mechanics work on it with me. We disconnected the vacuum advance and plugged it to set the timing. According to the mechanic, he checked the vacuum line and it was creating vacuum when we ran up the rpm. I had one of our shop mechanics rebuild the carb (he works on old cars on the side). put the same gasket back on the base of carb since it looked good. No leaks we can see around the manifold or carb base, although the carb is not far from needing replacement in my mind. the choke was replaced with a manual cable operated choke before I received the vehicle. Could an incorrectly set dwell cause this problem? When i bought the fuel pump, an plymouth guru at NAPA told me I should also buy a fuel pressure regulator valve and install in line, which I did, and set it down low. That does not seem to be the problem. My next step was to adjust dwell and get a pressure gage for fuel and check to see how well the fuel pump was delivering fuel.

I have been working on a 1947 Plymouth Special Deluxe from my father in law that had been stored for the past 10+ years. It has a 1941 engine in it from the factory (WWII leftovers) and he had the engine rebuilt prior to storage. When he had run the vehicle all ran well with no issues. Later on, the electric fuel pump he had in it to bypass the mechanical one eventually failed and he did not have it replaced. Brakes froze up and it needed some work. I have done a complete brake replacement. also replaced coil, distributor cap, rotor plugs & wires, points and condenser, starter rebuild, electric fuel pump (pressure regulator on fuel line, new fuel filters. Vehicle starts and runs well at lower RPM but when I get about to 30 mph or so, it loses power and misses. Thought it might be timing but when adjusted still does the same. Fuel pump seems to be delivering fuel well but cant determine that when the vehicle is under load. Any thoughts on this?

Thanks so much for the advice. How do I go about getting a service manual like the one you have?

I recently had my brake shoes from my 1947 Plymouth special deluxe relined and when I got them back I realized that two of the 8 shoes had a shorter lining surface than the other 6. Not sure if they were that way when I sent them off. Does it make a difference where I place them?