I still cant find my engine number on my 83 240D--the machine shop needs it. I read on the driver side of the engine block, just below the top of the block 2nd/3rd cylinder 616-011-28-01, on the next line 83 B21, but I think that is the Casting Number. Mr. Benzmac suggested in my last post to check the Bell Housing, but pl dont laugh- I cant find the Bell Housing-dont know what it is. Can I get clearer instructions?