I believe that you are asking if the Forester engine is what is known as an "interference engine". That is, is it possible for the valves to contact the pistons if they are out of synchronization? My answer is based on empirical evidence from my '96 Outback and my assumption is that these engines are similar in this regard. No, the piston will not contact the valve if the belt breaks. But why take the chance? Change the timing belt because if it fails, the engine ceases working immediately. There are times in every day driving where having the car stop could be deadly. Don't forget to change the water pump at the same time. --Ken
The 2001 Subaru Forester has a flat 4 engine.
The 2004 Subaru Forester has a flat 4 engine.
The 2013 Subaru Forester has a flat 4 engine.
The 2012 Subaru Forester has a flat 4 engine.
The 2002 Subaru Forester has a flat 4 engine.
The 2010 Subaru Forester has a flat 4 engine.
The 2006 Subaru Forester has a flat 4 engine.
The 2005 Subaru Forester has a flat 4 engine.
The 2008 Subaru Forester has a flat 4 engine.
The 2011 Subaru Forester has a flat 4 engine.
The 2003 Subaru Forester has a flat 4 engine.
The 2007 Subaru Forester has a flat 4 engine.