1953-1960 Classic Car Engines Troubleshooting Guide: Engine Misfires At All Speeds
Things to Look For:
- Fouled spark plug or broken porcelain.
- Faulty spark plug cables.
- Low battery voltage.
- Low generator voltage.
- Burned or pitted ignition points.
- Incorrect ignition point gap.
- Faulty condenser or coil.
- Weak spark or no spark in one or more cylinders.
- Faulty distributor cap or rotor.
- Primary circuit restricted or open intermittently.
- Primary circuit detoured by short intermittently.
- Secondary circuit restricted or open intermittently.
- Secondary circuit detoured by short intermittently.
- Blown cylinder head gasket between cylinders. This can be noted when missing occurs in two adjacent cylinders.
- Sticking valves.
- Hydraulic tappet holds valve open slightly.
- Broken valve spring.
- Leak at intake manifold gaskets.
- Mixture too rich or too lean.
- High tension wire shorted in metal manifold.
The Complete Guide to Troubleshooting 1953-1960 Era American Classic Car Engines