2005 Seadoo GTX 4-tec 155 that takes in water

[SDwatercraft]

I have a Seadoo GTX 4-tec 155 that takes in water from the jet (I think)? The ski will run fine on the gas for 3 minutes then will loose all propulsion while rpm's are up or at idle and there is a grinding sound. When this happens the ski will take on water at a fast rate. I drain the water out of the ski then start it on the trailer and everything sounds and runs fine. I put the ski back in the water and does not take on water at idle but if I give it gas after 3 minutes the same problem happens again. what is going on?

 

[Bills86e]

Here is a link to pictures of your propulsion drive. You may need to pull your jetpump.
http://www.seadoowarehouse.com/parts.php?type=2005

Inspect the engine mounts for breakage, carbone ring for warpage, wear ring for the
clearance (.008=good, .040=bad) impellar bearings damage.

Consult your Service Manual for proceedure, torque specs, ect. Manuals are specific to your year & model.

The how-to section of this forum, and similar posts on bottom left of this page.

 

[Jammer844]

your problem with your taking on water is you either have a disconnected hose or a crack in your water inlet that comes in right at the prop in the rear if you look inside near where the prop is there should be 3 holes and what happens is when the engine runs the prop spins and propels water thru the gullet and past the prop out the back which causes the thrust movement forward, and as this happens that pressure from the propulsion forcing water out the back also forces water into the cooling in take hose. skis use a raw water or Open cooling type system all the water that comes in goes right back out, in example why there is no thermostat.

Hope this might help cause that is the main thing that would highly cause the ski to take on water FAST because of the revolution that the prop is spinning and the pressure and force of the water being drawn into your cooling system which is most likely leaking into your hull..

-J