[Tgionet]

Originally Posted by killerkid08

Here are photos from an FA20 engine broken in the "drive it like you stole it" way.

http://i851.photobucket.com/albums/a...922_113230.jpg
http://i851.photobucket.com/albums/a...922_113149.jpg
http://i851.photobucket.com/albums/a...922_113211.jpg

If anyone has pictures of pistons from an FA20 motor, broken in via the owners manual, please post them here.

I'm no mechanic or engineer, but that looks like pitting from preignition to me.