[ROVERNET - UK] P6/ pinto

Nathan Obuch nathanobuch at yahoo.com
Sun Dec 9 17:09:58 GMT 2007

 I have
> one question. What is 
> the difference of a free running design and a
> interference design? 

A free running or free wheeling engine has enough
clearance between the valves (when open) and the
pistons (when at Top Dead Center) that they don't
collide if the timing chain or belt fails and the
valve timing gets out of sync.

An interference engine can bend valves or worse if the
chain/belt breaks.

I believe the original P6 engine is free wheeling.



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