08-15-2008, 02:16 PM #1
how does the Rad4 shaft seal solve cavitation?
on another thread it was reported by rad4 owners that cav probs are solved with this..
can someone explain to me why? I never thought the drive shaft seal would cause cav..no air getting thru.. how does the rad4 solve that?
08-15-2008, 02:20 PM #2
The stock carbon seal will let air through from inside the hull under hard acceleration and the rad 4 and others like it will not.
08-15-2008, 03:01 PM #3
- Join Date
- Aug 2005
- Jerry's guest bedroom
The carbon seal is more like a gasket, put enough vacuum on the pump side and it will leak air from the hull.
08-15-2008, 04:31 PM #4
To add to this thread, the Rad 4 seal has 3 seal's that really help to prevent air/water from entering the hull.
Seadoo should find a better way of doing it.
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