Does Toyota have non-interference engine?
Toyota. While many of Toyota’s models are freewheeling, several feature interference engines. Whether a Toyota has an interference engine or not depends on which engine Toyota put in the vehicle. The 1980 through 1988 Tercel and the Corolla both use the 1.5-liter engine with the engine codes 3A and 3A-C.
Is the 22R a non-interference engine?
Toyota 20R, 22R, 22RE, 22RET, 2RZ-RE, 3RZ-FE engines are all chain driven interference engines. The 5VZ-FE and the 3VZE is a belt driven non-interference engine. Therefore the valves can not come in contact with the pistons if the timing is not correct.
When to change timing belt for interference engine?
It may last until 80,000, 90,000 or even more miles before it fails. But eventually your timing belt will fail, and when that happens it can cause expensive engine damage if your engine is an interference engine. If you do not know when your timing belt should be changed, look up the recommended service interval in your owners manual.
When is a timing belt failure bad news?
A timing belt failure is bad news because when the belt breaks, the camshaft stops turning and the engine dies.
What does a broken belt in an interference engine mean?
A broken belt in an interference engine probably means the whole engine is destroyed, as the pistons take turns slamming into open valves. Ouch. Bad. Chains are lubricated by the engine’s oil system, and are designed so that they should last as long or longer than the rest of the engine.
When to know if your car has an interference engine?
An interference engine is one that has insufficient clearance between the valves and pistons if the cam stops turning due to a broken timing belt. The result is usually catastrophic engine failure. Not so with a non-interference engine. It pays to know. The video below will also help you determine if your car has a timing belt or chain.