3 ms·
Due to inertia of the piston and minor velocity difference of moving up vs down in a cranking geometry, an ICE will be unbalanced and generate vibrations. Calle
by Too 4y ago
Due to inertia of the piston and minor velocity difference of moving up vs down in a cranking geometry, an ICE will be unbalanced and generate vibrations. Called primary and secondary balance.
This has nothing to do with tolerance, but yeah I’m not talking about rattling either, just vibrations.
Unless you have a V8, where all this unbalance is cancelled out by opposing movement on the other side of the engine.
- tekknik 4y agoIt’s more to do with crankshaft design than piston count. Either way, engines have had dampeners / balancers on them since before either of us were born. So again, the sound is coming from the explosions, not the vibrations.