Thanks ,
Tim , The information is coming . I have seen this detail of the "link" you provided , it is a Transcript of Registry of Shipping there is also a Serial Number Registry . Serial Number registry shows The Manufacturing Date .Not all Engine Serial numbers were recorded in successionso far transcribed year 2012, at present it is an assumption by accessing by an approximation . Joe Maurer goes to Museum at Free Port , when he has a build up , of serial number requirement from owners . He will know more as he can access the exact dates . Both manufacturer, and shipping . It is a type DX Model E Standard from what is understood . Prefix ODX is Hopper cooled . The prefix abbreviation " port" may be Portable . It has a Solid Cam Gear "not" Spoked although it has a raised portions of Spokes on the Farside . So this Engine is occurring approx at the time / year of implementation of Solid Cast Cam Gears . The Junior and Earlier Stovers have the Spoked Cam Gears . Note: The igniter when bolted to the Igniter Port , the " exotic point "contacts point up , i have seen igniter points pointing down . When viewed inside the port for the igniter, it sits in a recess and a partition directly behind , so igniter is well away and protected and high up from the oily matrix and low octane ignition flash and combustion full front force . Rather than having been totally exposed . The bottom igniter (1) stud is exposed to the interior water jacket , like the exhaust stud/s on the exhaust . Cooling . Note : No spring Washers used on Engine .