Good Morning !, im looking at buying a 92 mercedes 300D, the car over heated and ruined the engine,,, i Have overhauled a few gas engines b4 <5-6> , Are these diesel motors cylinders sleeved???? , what can i expect the cost < major overhaul w/ sleeves? > be? and a site to order from? also what should i check,on/off the motor that mite also have been affected?, or ?? i will check to see if the motor turns over or not < by hand > or is siezed up!, another thought is buy another older D and just swap motors, having a spare trans. radiator. etc. etc. in the older car. im in Dallas , ,thanks russ. Thanks for this site.