Definition of quantal. 1  1 [Latin quanti how many, plural of quantus] : of, relating to, or having only two experimental alternatives (such as dead or alive, all or none) 2  2 [quantum] : of or relating to a quantum.
3. Engine movement. Another symptom of bad or failing engine mounts is an engine that moves in the engine bay. If the engine mounts are in good condition, they should be able to secure the engine firmly in the engine bay.
This can later damage the starter motor. The misalignment is usually caused by an existing fuel or ignition timing problem. This can also cause severe damage to the nose cone and/or the starter driver assembly. Poor Grounding: The mounting bases are a key part of the starter motor's ground.