Many docoments are tranlated to or originated in english, because it is the only language on the planet with a bazillion adjectives. I can't see how you drove the car that far with a knocking noise. Are you sure it isn't a clattering noise or a tapping noise? If so, I'm inclined to go with Chuck on the valve train. You can drive 1000 miles with a clattering valve train. There are a couple of other possibilities since you don't know the history of repair. The bolts could be loose on the torque convertor or the chain could have been installed by someone who is good at taking things apart and putting them back together but knows nothing about valve timing. The right bank could be too far advanced, and the valves are kissing the pistons. It is possible to have broken rings or excessive wrist pin play, but these are unlikely in that engine.

Peter

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