A couple months ago, my timing got out and my head got damaged, $2000 later, it's working again. Just had the transmission swapped from 020 to 02a. Would the timing need to be reset? The reason I ask is because before the head went last time, the engine sounded noticeably louder, then 50km later, killed a lifter. it may be because i haven't driven the diesel for 5 months, or if they removed some sound deadening, but it sounds louder again, raspier. The shop says no, but i don't want to go through the same thing again. please give me peace of mind!