Bad Sea Doo Day

[ITD]

This looks like a cooling issue to me, not a resonator issue. The manual for my sea doos say not to operate in water less than 3 feet deep. I have gotten the cooling system plugged before in shallow water. Putting a metal part in does not solve the problem, this is a closed area with a large gas tank, oil and many fragile parts, the last thing you want is a red hot piece of metal in there.

[Rich]

yes cooling is the root issue. But someone can suck up FOD at any depth or speed, and this can block the main impeller which provides the cooling.

A metal replacement exhaust will not solve the root issue, but it may help to keep the thing from sinking.

But then again, I don't own one, so I'm only going by what I'm reading via the supplied links.

[ITD]

Originally Posted by Rich

yes cooling is the root issue. But someone can suck up FOD at any depth or speed, and this can block the main impeller which provides the cooling.

A metal replacement exhaust will not solve the root issue, but it may help to keep the thing from sinking.

But then again, I don't own one, so I'm only going by what I'm reading via the supplied links.

I really don't think it would be safe, exhaust is very high temperature. I think Sea doo may need to put some temp sensors in these parts if they can't keep them from clogging.

[V ger]

A well designed wet exhaust system will employ both a cooling water flow sensor and an exhaust temperature sensor. The ABYC standard P-01 1.7.2 states, "An indicator shall be provided that is effective at all helm positions to indicate loss of exhaust system cooling water supply. This indicator shall be independent of the engine block temperature indicator(s)." My 10 year copy of the standards makes no exception for PWCs so perhaps a newer copy might read differently. Even if an exception has been granted best engineering practices would dictate the use of the sensors mentioned above, especially when flammable materials are employed in the exhaust system.

[ITD]

Originally Posted by V ger

A well designed wet exhaust system will employ both a cooling water flow sensor and an exhaust temperature sensor. The ABYC standard P-01 1.7.2 states, "An indicator shall be provided that is effective at all helm positions to indicate loss of exhaust system cooling water supply. This indicator shall be independent of the engine block temperature indicator(s)." My 10 year copy of the standards makes no exception for PWCs so perhaps a newer copy might read differently. Even if an exception has been granted best engineering practices would dictate the use of the sensors mentioned above, especially when flammable materials are employed in the exhaust system.

Good post, makes sense, they must get around that rule somehow, or maybe the sensors aren't working. The big question is are these being clogged up or is it a defect.