I've worked on many a car. Brand new, before brand new, used, well used. I've done quite a bit a stuff. I'm meticulous and thorough. I have torque wrenches and a fairly thorough selection of tools. Yet I can f up some crap like that at any time. I applaud the OP for doing it on his own, and working to find a solution to what has happened.
Originally Posted by foama
I'm watching, but don't have any good solutions to offer. Working with a machine shop of some kind sounds like something to check into. Those machine shop guys are quite professional and have done a lot of "stuff."
View my fuel log 2020 Mirage ES 1.2 manual: 42.4 mpg (US) ... 18.0 km/L ... 5.5 L/100 km ... 50.9 mpg (Imp)