I have been working on completing the drive shaft of this motor. I was wondering what parts will remain on the upper. drive shaft after it is pulled out. There is a spring, a brass retainer. Should lower bearing to driveshaft seal remain engine or is that supposed to come out (or fall out) as well. It appears crankshaft plate and o-ring are still in engine. Most importantly I'd like to know how parts of upper drive shaft (lower bearing to drive shaft seal) are re-assembled. Thanks for any help!