What is a SUBARU non-interference engine?

ScoobyEnthusiast.com — Fri, 15 Oct 2010 20:05:18 +0000

What does it mean if a SUBARU engine is 'non-interference'? Engines are designated as interference or non-interference.

In a non-interference SUBARU engine, there is no possibility of the pistons and valves coming into contact with each other. In other words, there is enough clearance between the piston at TDC (top dead center) and the fully open exhaust and/or intake valves so that they do not touch (interfere).

What is a SUBARU interference engine?

ScoobyEnthusiast.com — Fri, 15 Oct 2010 00:41:21 +0000

So what does it mean if a SUBARU engine is 'interference'? SUBARU engines are often designated as interference or non-interference.

Subaru cars - engine timing

What is a SUBARU non-interference engine?

What is a SUBARU interference engine?