This should be helpful....I did my first headgasket for the first time on this car recently.......

http://www.benzworld.org/forums/w124-e-ce-d-td-class/1460479-started-my-head-gasket-repair.html

Look at the last page also, i provide links to some of the most importants reads on this ,,,including Steve's article (a must read!!!)

good luck

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1993 300E, 2.8 M104 .....