Originally Posted by thefultonhow
2. How would it take only 2.5 hours? In order to adjust the valves, you need to re-shim them, which involves taking off the valve covers and cams, which is very hard to do without pulling the engine, which takes way more than 2.5 hours.
I think your mechanic took you for a ride.
That's what I thought too, but in fact the 2010-2012 SOHC EJ253 2.5i's have been basically unchanged for decades. Simple jamb-nut lash adjustment. Simple hand tools and some time is all it takes.
The DOHC engines are the ones with the replaceable buckets for lash adjustment.