Quote:
Originally Posted by NoHaveMSG
It’s not related to the recall. 2014 and up engines have longer valves and deeper pockets in the rocker arms for the pivot.
Mine was neither oil pressure or over rev. I think it’s mostly a geometry issue with the valve train 
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I was referring to the general design flaw of the rockers. It was worded poorly, sorry.
My understanding on the springs is it was a production adjustment in mid 2013 to 2014, and the other valvetrain part numbers weren't changed until 2015 with the harness, sensors, etc. I double checked and you are correct, the part numbers were changed for 2014 and the other changes in 2015+.
I've owned a '13 and a '16 but not in between, so not completely aware of the years beyond knowing about the differences being there.
The valve spring recall contributes a lot to the higher failure rate in '13s, but the general design was still never significantly changed. Aftermarket valve springs can help better secure them (stronger), but obviously it does not prevent the problem. I agree with you, the design of them is flawed, and I would recommend running keepers for all year FA20's.