After I separated the driveshaft tube from the gear case I tried to get
the driveshaft removed from the gear case. There’s a coupler on
the driveshaft with two visible drive pins in it.
As I attempted to remove the lower “big” pin on the end of the coupler,
(without any success), I noticed a “spring band” just below, and
another drive pin underneath the band. This is apparently the
correct way to remove the drive shaft.
I’ll have to inspect the driveshaft with coupler for “trueness”, as
it almost seems that there’s a wobble when spun over by hand.
Looking down the driveshaft tube at the powerhead mount flange,
there’s two water lines inside the tube, both plumbed to the flange,
and hence the powerhead.
The feed tube connects to the piston pump, via an external tubing.
The outlet tube shoots out the side of the driveshaft tube, above the
water line.
All I know for today.
Prepare to be boarded!