I've an OM636 and used chain and shackle to the 4 engine mounts with pipe spreaders to keep the chain off the sides of the engine when lifting. There is no lifting ring and I would not recommend using the manifold or any other appendage on the engine. You could use a soft strap around the trans for the rear if you were doing the engine and trans together. Good luck. They are heavy little buggers. Yes, on Westfield 4X4. Very helpful.
I might have a photo in the lifting mode if I can find it.
Here's a coupla photos pre install. The colorful one is before I painted it. You can see all the different parts and pieces I've gathered over the years by the difference in colors.
The four chains come together to a shackle just above the spreader bars.
I've a couple of different fuel injector pumps for parts for this engine. One is built in Spain and is a marine version and the other is a Bosch for a MB180D. Might be good for parts or rebuild if you are interested. Drop me a private message.