looks to me like it was semi-goosed anyway and the final nail in the coffin so to say is machining swarf ingress

moral is bench clean engine parts YOURSELF if you know they have had work done to them
dont take anyones word for it !!


some of them score markings look fresh mate

its a fiat leave it on the road and give it a few weeks and it will be dust anyway and blow away in the wind leaving a rusy coloured crap on the floor were it was once parked