What does a bad valve spring look like?
What does a bad valve spring look like? Symptoms of Weak Valve Springs Weak valve springs will typically cause misfiring and a loss of power as engine speed increases. The engine may start and idle fine, or run normally up to 3500 to 4000 RPM. Do valve springs wear out? Replace or Reuse Valve Springs Valve springs do wear out. If you are rebuilding the engine, it is a good idea to replace the valve springs. When swapping a cam, the most important thing to avoid is valve spring coil bind. Coil bind occurs when the camshaft lifts the valve...