I installed a new belt tensioner spring and damper. I used red thread locking compound on the tensioner bearing bolt threads and black RTV at where the bearing meets the engine (since the hole goes all the way through into the crankcase). I was able to spray a little lithium grease into the pulley bearing through the broken spots of the seal. I had to borrow a torque wrench that would go up to 320 Nm/236 ft-lbs so I could tighten the crank hub bolt. I put black RTV on the washer that touches the hub and a little on the bolt threads at that washer to prevent oil from creeping out.


The water pump and crank pulleys were rusty. The crank pulley was very rusted and the surface was heavily pitted after rust removal. I painted them with black engine paint.


The pulleys and new belt are installed. When I installed the fan, I used blue thread locking compound and made sure it was extra tight so there wouldn't be a repeat performance.


A new fan shroud was ordered.


We also got a new radiator mounting kit as it was missing one of the lower mounts, which explains why the radiator was tilted. It was also missing the upper rubber mounts entirely, and the clips were rusted.

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DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles