Seadoo gti 130 2012 coolant leaking from reservoir breather

[Thiag00]

Hi guys, I have a problem with my Seadoo. The coolant is constantly leaking through the breather hose that comes from the reservoir. The head gasket has already been replaced, but it was not damaged, so I decided to change it. I have already tested another reservoir cap. Now I suspect that the thermostatic valve may be oxidized and may be malfunctioning. Does anyone have any idea what it could be?

 

[mkov608]

You have already tested another reservoir cap? And ... It still leaks? Perhaps the coolant tank is defective.

Have you pressure checked the cooling system?

 

[Thiag00]

You have already tested another reservoir cap? And ... It still leaks? Perhaps the coolant tank is defective.

Have you pressure checked the cooling system?

Yes, I tested another cap and the leak continued. I did the pressure test and it was normal. I'm going to try changing the reservoir and testing it.