Why make interference engines

Sometimes, simple parts do critical, complex jobs. He since moved on to learn a few things about coefficient of drag, G-forces, toe-heel shifting, and how to work the crazy infotainment system in some random weekly driver.

Matt is a member of the Washington Automotive Press Association and is a contributor to various print and online media sources. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Skip to content What kind of engine is in your car: interference or non-interference? Interference vs.

Non-Interference Engines The differences between interference and non-interference engines have everything to do with design. Photo courtesy of Matthew C. Categories Maintenance Tags car maintenance , engine , timing , timing belt , timing chain , valvetrain.

Like all engine designs, interference engines depend on the owner properly maintaining the vehicle. As long as you do that, this should never become an issue. Is this not ok to do? Why not? I am sure the junkyards are full of cars that have broken transmissions because the owners never changed the transmission fluid. I am sure junkyards are full of cars that have blown engines because the oil was never changed. I am sure junkyards are full of cars that have blown engines because the coolant was never changed.

Need I go on? Yes they are. Unfortunately, there is at least one; the EPA man. Those reliefs contribute to crevice volume and will impact emissions. I just thought of another potential stakeholder that might be concerned; the bean counters at the car manufacturer. But, can also be confused with the same symptoms; caused by issues with your ignition or fuel injection systems.

Most of the images displayed are of unknown origin. We do not intend to infringe any legitimate intellectual right, artistic rights or copyright. If you ever have a broken timing belt or chain; the cost of repairs for a interference or non-interference engine, are not the same.

So, timing belt or chain replacement, is more important than you think. The timing belt or chain must turn the crankshaft, exactly two revolutions for every one revolution of the camshaft. Timing Belt Function Illustration So, when the camshaft turns, it opens and closes the valves.

Furthermore, e ither one, may have a timing belt or chain. Engine Testing.