I just did this all on my dad's '83 SD....we had to pull the pulleys and vibration disc to get at the pin for the chain tensioner. I put the big main bolt back in and torqued it to about 220ft/lbs or so.....and the smaller M8x30 bolts were replaced with a new set from the dealer, the new ones are 10.9 hardness....old were 8.8. I used blue locktite in the reinstall, and torqued them to 25nm like it says in the FSM.

Its not *that* scary....taking off the camshaft sprocket and chain/tensioner and such, is scary! And I did all of that too, successfully. The engine was fired up today and runs great.

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'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
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