Why interference engine

In this case, a broken belt can cause valves and the piston to collide or interfere. As a result, damage involving bent valves and, in some cases, a broken piston can lead to daunting repairs. How can you avoid interference engine damage? However, the manual may or may not specify what type of engine you have.

However, regardless of the type of engine your car has, swapping out the timing belt or chain in a timely manner can help you avoid a breakdown or even a catastrophe. Your timing belt or chain has a specified lifespan, typically 60, to , miles, according to experts. Specifically, look for cracks or abrasions — clear signs the belt is past its prime. So, if the timing belt snaps, the pistons will smash into the valves; causing serious and costly engine damage.

So, when it comes to automotive maintenance schedules, they exist for good reason. Oil, spark plugs and most of all, timing belts should always be changes at recommended times.

Finally, the risk highly depends on whether your engine is, an interference engine or not. Variable valve timing VVT systems, are not just used to increase performance.

Meanwhile, the benefits of lower fuel consumption and emissions, are also leaving the EGR valve in the past. Because, with variable valve timing […]. Crankshaft — Camshaft […]. What kind of moron would design an engine like that? The answer is many, many morons.

So, the question is, why? The main reason why is because everyone wants good engines. That means powerful, efficient engines, and one of the best ways to make powerful, efficient engines is to have engines with high compression.

The increased efficiency to meet fuel mileage standards is part of the answer. I would prefer a non-interference engine with slightly lower gasoline mileage. The overhead valve engine was more complicated, but was much more efficient for a given engine displacement.

Many push type lawnmowers have gone from side valve engines in the block to overhead valve engines. The cost of a new timing belt every k is insignificant compared to the total cost of owning and driving a car.

Car makers are well aware of these things…. In the end, belts are used instead of chains as a matter of COST. Every part on a car, every nut, bolt and screw has gone through a cost analysis. If they can make it cheaper and still meet quality goals, they will.