It's an old A&M Sachs 3.2..The ignition sensor is missing from under the hub...Take the single bolt adapter off the hub and look at the crankshaft...If it's smooth on the end it's not a Sachs crank...Some worked well, some not so well...A Sachs crank is a direct replacement..(But $$$$) .....
Hello, TKG..

A&M was the only manufacturer to paint the top of the cylinder....