I had a pc of wood holding up my hood on an 85 300SD. Started up the car and then, vibration was enough to make the wood strip fall, into the area of the power steering pump. I shut the car off and looked under the hood. The belt was on the lower pulley in the proper orientation but on the pulley at the power steering pump it was flipped and riding on the outer rim.

This is where i screwed up for the second time. I loosened the 3 mounting bolts and then decided to try to find the adjustment bolt or something to adjust the tension... too late, I found it on the top right corner of the pump and could see inside, that I distorted some type of nut.....

Can I buy just the adjusting parts or did I really mess this up bad? Also, if I pulled hard on the pump to get it back into place, but it's not really up to proper tension, is in unwise to drive it? What would happen if I drive the car with a slack ps pump belt?

I started the vehicle and turned the steering at idle but not sure about highway speeds and a loose belt...

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1985 300SD