Recently purchased a 80 300sd parts/project car. Not sure as to what I was going to do with it when I bought it.

Found out the oil pump chain had broke and was spit out the side of the upper pan.

Car has 316K on the odometer, but appears to have been cared for up to a point.

I plan to fix it with an engine out of my first Mercedes an 83 300D that my daughter wrecked a few years back.

Question is how many of you have had this oil pump chain to break or have heard of it?

The plastic tensioner was broke as well although it is impossible to tell what let go first.

__________________
1980 300SD Manganese Brown Metallic Clearcoat 248k
1979 300SD White 148 k
1984 300D Silver project car for daughter
1982 300D wrecked
1980 300SD 310K not running