I was upgrading the alternator on my 79 300TD to a AL129X. I was lying on my back under the engine and torquing the alternator bolts applying all of my force to the bolt. I was using a ratchet with a rubber handle. I had my left elbow bent when the rubber handle slipped off the ratchet and my fist drove square into my chin at full force. Damn, that was a surprise. My neck was sore from the force snapping my head in the other direction.

I stood up to make sure I was okay and decided to finish putting the bolts on and then called it a day.

Has any one else ever done anything like this working on their cars?

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2009 ML320 Bluetec
1985 300CD
1981 300TD

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD