Apologies for my misuse of terms.

Dan, can you post a schematic of the new drive shaft that is installed when the Centa upgrade kit is installed? It is this new shaft that seals against the main crank oil seal. This seal part is not specific to Morgan and I do not believe it is the culprit of all of the reported leaks and at least one catastrophic failure chronicled on this forum (saved by the horn). In my opinion it is this Centa specific crank shaft that is not made to the quality demanded of it's task.

I'm now very curious what the "Special Tool" is that Paul's dealer is referencing next. In my opinion it's this dealers communication strategy to put 'special' before other common words to avoid accuracy.

Please correct any terminology I may have misused.