Why is cylinder deactivation bad?
Although most V8 engines are inherently well-balanced, the amplitudes of torsional vibrations that occur within a V8 engine are for the most part determined by both engine speed and load, so when the same cylinders are always deactivated regardless of the engine speed and load, the loss of power contributions by …
Is it bad to go slow in a high gear?
If you have manual transmission, you will likely have noticed that driving in too high a gear for your speed and RPM range causes the car to shake and move slowly, commonly known as “lugging.” Lugging creates an unnecessary strain on the engine and can damage your cylinder heads, leading to expensive repairs later on.
Is cylinder deactivation good or bad?
Cylinder deactivation has been proven to improve gas mileage, but it may not always be by a significant amount. Just because you are shutting down half the cylinders in an engine doesn’t mean that you will get mileage that is twice as good! The actual benefits vary depending on the vehicle and powertrain.
Can a bad engine be fixed?
If you do have a blown engine, whether or not it can be fixed depends upon the extensiveness of the damage. If the damage is minimal, and a few parts can be replaced, the problem can be fixed. However, if the damage is great and impossible to repair, you may need a complete engine replacement.
How does 4 cylinder engine affect engine life?
An engine designed and balanced for 4 cylinders will have poor balancing with 3 cylinders. A 4 cylinder engine have secondary unbalanced forces, while a 3 cylinder engine have primary and secondary unbalanced couples.This could lead to unbalanced vibrations
How does cylinder deactivation affect the engine life?
The early cylinder de-activation engines did suffer from several related maladies that would accumulate additional wear and damage over time. The current run of designs have taken most of this into account and lessened the effects on engine life.
What causes the ECM times cylinder to be deactivated?
The ECM times cylinder deactivation on an intake stroke when the intake cam lobe is pushing the valve lifter up to open the intake valve against the force of the valve spring. The force exerted by the valve spring is acting on the side of the lifter locking pins, preventing them from moving until the intake valve has closed.
Which is better for an engine, more cylinders / less liters?
An engine with more cylinders is going to run smother than one with less cylinders. More cylinders mean more complexity and more parts. A 6 cylinder has more spark plugs and more injectors if it’s a diesel than a 4 cylinder. The one with more cylinders will likely have a higher rpm limit and thus make more power.