What year is my donor engine? 99? KH1 isn't upside down, jug says 599, both jug and head gaskets are MLS, stator cover isn't louvered andis not stamped with anything other than MG, both side covers are polished as well. How does this timing chain tensioner work,??? there is no bolt in the middle. Does the black plastic thingy on the timing chain side of the motor have to go on the motor? I don't see the point. Is the timing advance adjustable? Are the cam sprockets adjustable? Anything else I need to know to not trash the new engine?
2nd pic is original engine