The engines don't leak once you buy an Elring gasket set, pull the parts off down to the long block and reinstall. There is a thread here titled similar to "Leak free 617" that has good destructions on sealing so that it stays sealed.

I'll clean up the engine in the parts car and install if either of my SD engines have serious problems. These are solid cars once the neglect is remedies and the car can't be blamed for neglect.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.