Zvezda M503 maritime radial diesel engine.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...oat_engine.jpg
Fullsize image: https://s3-us-west-1.amazonaws.com/h...3_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...at_engine3.jpg
Fullsize image: https://s3-us-west-1.amazonaws.com/h...2_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...at_engine2.jpg
Previously:
https://www.homemadetools.net/forum/...216#post169105
https://www.homemadetools.net/forum/...178#post168925
https://www.homemadetools.net/forum/...082#post125698
https://www.homemadetools.net/forum/...680#post128735
https://www.homemadetools.net/forum/...665#post128670