taking on water from drive shaft boot

[murjiim]

Hey..
ok so today went to the beach and beached the boat. i was just checking and well there isnt too much water to be of concern but since day one there was always water so i could never figure out where its from.
i think i found the place unless this is normal.


i am able to retrack the drive shaft boot (or protection hose) pretty much about a 1/4" and i see water slurging in. i can also move the protection hose up and down abit right where the clamp is.
is this normal for it to retract or should it be tight? i tightned the clamps abit more as i had a screw driver but i didnt go too tight to prevent from tearing the rubber.
also just before the this protection hose, there is a ring (sort of brown/black in color (i guess RING CARBONE? prt 7)

i also notice around the plastic guard thingy there is grease line and also some grease on the hose from the bailers and also on the bailers its self.
i know there is a pin size hole in my RUBBER BOOT (prt 4)...so i guess its that tiny hole making grease splatter. i had posted about this before and seemed like it was ok.

again not too much water coming in for me to be concerned but might as well ask before it gets worse.

Thanks for the help.

http://fiche.seadoowarehouse.com/se... Sea Doo PWC SPX PROPULSION SYSTEM - INTERNAL

 

[Clutch]

The protection hose shouldn't be able to move from where it's hose clamped on the front or rear, there is water immediately behind that so if they're loose you will definitely take on water.

As to why it's loose, make sure the seal carrier has been greased properly (and often) as if it starts to spin with the driveshaft it will disrupt the boot sealing to the through-hull sleeve. The owner of the last project sea-doo I bought was selling because it was taking on water, the issue was that he didn't keep up with that seal carrier and it had spun the protection hose until the hose clamp loosened up enough to let water leak in.

 

[Dr Honda]

If you pull the carbon seal boot back... yes... water is going to come in. When you do that... you are opening the seal. If you don't have cavitation... it's working as designed. Also... the design of the seal allows for some water to com past. That's how it stays cool.

A seadoo boat... at the end of the day will drain out a few gallons of water.

 

[Dr Honda]

double post

 

[murjiim]

If you pull the carbon seal boot back... yes... water is going to come in. When you do that... you are opening the seal. If you don't have cavitation... it's working as designed. Also... the design of the seal allows for some water to com past. That's how it stays cool.

A seadoo boat... at the end of the day will drain out a few gallons of water.

So you are saying its normal for you to be able to retract that boot just abit? i am not sure but i dont feel signs of cavitation.

Clutch,
I made sure, and infact last time i went out i greased it with my gun..
i hope you are talking about greasing from the grease fitting and not something else.
my issue is that i feel that there should not be a pin size hole in that rubber fitting that holds the grease. the damn grease is flying out and is all around the inside of the grey cover and some grease even on the bailers.
also i notice when i grease it with the gun..i can see the rubber thing that hold the grease in expand and moves down so i think the darn ziptie isnt tight enough. any other alternatives to zipties for this part? i know not to use clamps.

 

[Clutch]

So you are saying its normal for you to be able to retract that boot just abit? i am not sure but i dont feel signs of cavitation.

Clutch,
I made sure, and infact last time i went out i greased it with my gun..
i hope you are talking about greasing from the grease fitting and not something else.
my issue is that i feel that there should not be a pin size hole in that rubber fitting that holds the grease. the damn grease is flying out and is all around the inside of the grey cover and some grease even on the bailers.
also i notice when i grease it with the gun..i can see the rubber thing that hold the grease in expand and moves down so i think the darn ziptie isnt tight enough. any other alternatives to zipties for this part? i know not to use clamps.

Ok, my apologies, I'm not familiar with the carbon seal design and as I look at it my greasing talk about that was incorrect since you don't have the seal carrier needle-bearing business. However, some of the same ideas apply in that the only two ways I've seen the accordion boot get loose is from vibration or faulty hose clamps just coming loose, or the carrier (carbon ring in your case) turning with the driveshaft which it should not do. Hopefully simply tightening the clamps as you did will be enough to take care of it as it doesn't sound like you have any obvious damage going on there. From what I read though there are a couple o-rings inside that carbon seal, if you have the boot tight and are still taking water in I would suspect one or both of those is no longer doing the job.

On the other boot (north, attached to the PTO flywheel) I have the same thing going on, I have a small hole that allows grease to seep out and it makes a bit of a mess under the gray cover if I go too crazy with the grease gun. I have it on my list to change that boot the next time I have the pump off, but as to whether it's dangerous, I don't know... I haven't been too concerned about mine as I don't frequently have water high enough that it could find its way back into that boot. Dust and dirt could still get in, but I've rated it low enough priority to wait until the pump is off for whatever reason and replace.

In summary, I'd be interested to hear how it goes now that you've re-tightened the protection hose clamps, I bet you'll find that's where the water came from.

 

[murjiim]

so the other day, took it out, strapped to trailer and ran the boat...
there is no water coming out from that area.
so there is water coming in from somewhere else.
its not from the exh system because i checked and i cant see waster spashing or anything.
could there be a hole in the hull or something thats seeping in water. i doubt it anyway.
there really isnt much room in the ski to install a bilge pump. i would have to remove 1 bailer. does anyone have an idea?

 

[El Toro 33809]

Just because you didn't see water coming out of the carbon seal area doesn't mean it isn't seeping in there. As Dr. Honda said, they will take on some water from that area.

How much water are you seeing?

 

[murjiim]

not too much...i take it out for say 2hrs max riding time and see about 1 liter or water...well put it this way..its not enough to touch the engine mounts...its half way before it touches the mounts

 

[El Toro 33809]

Doesn't sound like an item you need to be concerned with then. Enjoy your boat!

 

[murjiim]

going out right now with it. thanks