When you say runs ok, that leaves alot out for imagination. First thing you need to do after checking your fluid levels and aircleaner, is to drive it. Take notes as to what it is doing; like smoking under load, shifting gears with out being too mushy, how hot does it run at idle and under load, etc. Then get back with your observations and I am sure someone can translate them for you. LOL

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Dave
1983 300D Daily Driver