PSS vent hose issue

[bayates]

So I have a weird issue on the Hakuna Matata. I got all the HX and Riser re-installed but during testing noticed the the vent loop for the PSS Dripless push water into the engine compartment when in reverse and over 1900 RPM. It does nor do it in forward at and speed. So I raised it thinking it may be to low to no avail. I checked the similar install on another C34 MKII and they have no issue in reverse at any RPM.

Looking for ideas or suggestions.

Brian

[Ralph Masters]

When in reverse the prop wash is being pushed up into the cavity for the shaft log and it will push water out of that vent tube when backing down real hard.  I believe Newton explained it well a number of years ago, when I was a seaman recruit, for every action there is an equal and opposite reaction.

Ralph
Ciao Bella
Cat 34 MkI
1987 367

[KWKloeber]

Brian see the end of page 2

http://www.pbase.com/mainecruising/pss_shaft_seal&page=2

kk

[Mark Sutherland]

I had the same issue, water spitting into places I absolutely don't want salt water.  I rerouted the pss vent hose aft to a breather fitting mounted high on my starboard transom.  Now any water spitting out of vent hose dribbles down the transom. 

[bayates]

I added the 400 Hyvee vent and no more issue. Bilge is bone dry.