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Totally Confused
- Thread starter patlance
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djredman99
New Member
Although the 4-tech models have a closed-loop cooling system, on winterization, Seadoo recommends that you replace the coolant in your system with a 50/50 (antifreeze/demineralized water) mix. This prevents degredation of the coolant over the winter and will ensure you have the proper cooling for the next season when you ride.
Also, if you have a supercharged intercooled model, you should put antifreeze into the intercooler and exhaust manifolds. See my response here for this procedure:
http://www.seadooforum.com/showthread.php?t=36520
Also, if you have a supercharged intercooled model, you should put antifreeze into the intercooler and exhaust manifolds. See my response here for this procedure:
http://www.seadooforum.com/showthread.php?t=36520
Shayner
New Member
just in garage checking
k I took off the intake for sc and hose from sc to throttle body to make some room and those 2 lines from the diagrahm I loosened and started to remove one and coolant started dripping out. now I'm confused...lol.
this 4tech is an entire closed loop system then just like my ski doo. The flush adapter is for flushing salt water if your doing that but I'm always in fresh.
my question is why did no one advise of this before....am I missing something???
k I took off the intake for sc and hose from sc to throttle body to make some room and those 2 lines from the diagrahm I loosened and started to remove one and coolant started dripping out. now I'm confused...lol.
this 4tech is an entire closed loop system then just like my ski doo. The flush adapter is for flushing salt water if your doing that but I'm always in fresh.
my question is why did no one advise of this before....am I missing something???
djredman99
New Member
The exhaust system in the 4-Tecs have an open loop cooling system in them, meaning it draws water in from wherever you are riding to cool them. The engine is a closed loop system, which is cooled on its own system separate from the exhaust (with antifreeze).
Not all 4-Tecs have the intercooler, but if your's does, water is pulled in from the lake, ocean, river, hot tub (yes...a hot tub, watch some youtube) and sent to the intercooler. It then goes in to the exhaust manifold before being expelled out of the ski.
Even 4-tecs without the intercooler still draw water in to cool the exhaust. Even in fresh water, there may be minerals in the water which will adhere themselves to the metal and block the water passages, making your cooling less effective. It is for this reason you still have to flush your wave runner, even if you just ride in fresh water.
The following images are from the 2006 4-tecs and display the water flow of the exhaust system:
With an intercooler, the water first travels to the front (bow) of the engine to the intercooler, then from the intercooler to the exhaust manifold
This engine does not have the intercooler. The water goes directly to the exhaust manifold.
So, if you only ride in fresh water and your wave runner is going to sit for a few days, you are recommended to flush the exhaust system. You always flush the system when you are done riding in salt water.
And when winterizing, you add undiluted (100%) antifreeze into the system to mix with whatever water remains so that it does not freeze, expand, and crack the manifold/intercooler.
Not all 4-Tecs have the intercooler, but if your's does, water is pulled in from the lake, ocean, river, hot tub (yes...a hot tub, watch some youtube) and sent to the intercooler. It then goes in to the exhaust manifold before being expelled out of the ski.
Even 4-tecs without the intercooler still draw water in to cool the exhaust. Even in fresh water, there may be minerals in the water which will adhere themselves to the metal and block the water passages, making your cooling less effective. It is for this reason you still have to flush your wave runner, even if you just ride in fresh water.
The following images are from the 2006 4-tecs and display the water flow of the exhaust system:
With an intercooler, the water first travels to the front (bow) of the engine to the intercooler, then from the intercooler to the exhaust manifold
This engine does not have the intercooler. The water goes directly to the exhaust manifold.
So, if you only ride in fresh water and your wave runner is going to sit for a few days, you are recommended to flush the exhaust system. You always flush the system when you are done riding in salt water.
And when winterizing, you add undiluted (100%) antifreeze into the system to mix with whatever water remains so that it does not freeze, expand, and crack the manifold/intercooler.
DC/Chicago
New Member
Thanks for the great response and for taking your time to put up with us.I looked at my engine and it does not have a intercoler just like the second picture.How will I get the manifold winterized?I assume I can get a gallon of 100 % antifreeze trought the water intake via a hose.I do that with my sail boat for the last 10 years and no problem .
Shayner
New Member
before every ride i start mine before leaving the garage just to make sure its running(no hick ups ya know)and shut it off-no hose connection.
now the exaust is cooled through an open loop system,this i get but running the engine for less than a minute and giving it a couple shots of throtle to clear the manifold will do no harm in my book,it cant heat up that quik.anyway thats what ive done and its fine.the exhaust never even warmed up.:cheers:
Shayner
New Member
The exhaust system in the 4-Tecs have an open loop cooling system in them, meaning it draws water in from wherever you are riding to cool them. The engine is a closed loop system, which is cooled on its own system separate from the exhaust (with antifreeze).
Not all 4-Tecs have the intercooler, but if your's does, water is pulled in from the lake, ocean, river, hot tub (yes...a hot tub, watch some youtube) and sent to the intercooler. It then goes in to the exhaust manifold before being expelled out of the ski.
Even 4-tecs without the intercooler still draw water in to cool the exhaust. Even in fresh water, there may be minerals in the water which will adhere themselves to the metal and block the water passages, making your cooling less effective. It is for this reason you still have to flush your wave runner, even if you just ride in fresh water.
The following images are from the 2006 4-tecs and display the water flow of the exhaust system:
With an intercooler, the water first travels to the front (bow) of the engine to the intercooler, then from the intercooler to the exhaust manifold
This engine does not have the intercooler. The water goes directly to the exhaust manifold.
So, if you only ride in fresh water and your wave runner is going to sit for a few days, you are recommended to flush the exhaust system. You always flush the system when you are done riding in salt water.
And when winterizing, you add undiluted (100%) antifreeze into the system to mix with whatever water remains so that it does not freeze, expand, and crack the manifold/intercooler.
thanks again for taking the time to search this out,now ill sleep a whole lot better after the first cold snap up here in canada.....eh....lol
djredman99
New Member
No problem Shayner, glad I could help.
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