Why bash 7Ms again, it doesnt matter what engine you have, if you DONT service it it will fail . 7Ms are a few years older than a 1J so naturally theres more sludge in them,sludge = failure. just wait a few more years then 1Js will have there turn, or if your unfortunate enough to own a poorly serviced 1MZ/2AZ then there turn is now.
So many engines cop a bad rap, when a lot of the time its from poor servicing .