The majority of modern engines are interference type.

An interference engine is a type of 4-stroke internal combustion piston engine in which one or more valves in the fully open position extends into any area through which the piston may travel. By contrast, in a non-interference engine, the piston does not travel into any area into which the valves open.

A bent valve could start a fatigue crack in the stem and if it breaks you drop the valve in the cylinder. if the valves are not bent that much, then it can still run with most likely not much problems. If it has bent significantly, it wont run right and can possible break off if it hits the piston and drop the valve.

Toyota. While many of Toyota’s models are freewheeling, several feature interference engines. In 1987 and 1988, some of the 1.5-liter Tercels have an engine designator code of 3E or 3E-E, which is also an interference engine. This engine is found in the Tercel up to 1994.

From the beginning, the law creating Medicare Part D includes a provision called the non-interference clause; it prohibits the Secretary of Health and Human Services from interfering in the private price negotiations between Medicare Part D plans and drug manufacturers and pharmacies in the program, and prevents the …

This is also why nearly all diesel engines are interference engines—by their nature diesels are very high compression engines. The benefits of high compression are so good that many engine designers decide it’s worth the risk to have an interference design.

Premium Member. it’s an interference motor!

2007 Toyota Tundra – Timing Belt Or Chain The 2007 Toyota Tundra 4.0L and 5.7L engines have a timing chain while the 4.7L has a timing belt. Both are interference engines.

Toyota Tundra: The V6 and V8 version of the Toyota Tundra used belts in the early 2000s. The V6 switched to a chain in 2005. The 4.6 V8 switched to a timing chain in the year 2010. The 5.7 V8 made the switch in 2007.

It has a score of four out of five in predicted reliability from J.D. Power. Plus, the Toyota Tundra is known for holding its value. Plus, the Tundra is powerful. It has one engine option for every model, and it’s a 5.7-liter V8 engine that produces 385 horsepower and 401 lb-ft of torque.