Took the Doo out for a ride and within minutes it was full of water up the battery.(yes plugs were in). Went over all hoses, intake, outlet, exhaust etc and found nothing. Emptied it and took her out for another spin without seats to see where water entered.......nothing! Then noticed slight cavitation and took her back, full again, to see that shaft had play in it. Greased her up (two shots) and tried again. Presto, no leaking or cavitation.
Could two little shots of grease be so important or should I be looking at something else?

Tonic