Coolant leaking into hull

[Seadoo155]

07 speedster 155. Coolant is leaking into the hull. I have a coolant pressure tool , pump to 13 lbs , I’ve traced all the lines and connections none are leaking, no leaking from the weep hole, no leaking from the pump housing. Can’t seem to narrow where else it could be leaking from. Overnight it will leak out by it self, on the pressure fitting leaks out in under 20 minutes.

 

[Seadoo155]

No leaking from the ride plate outside or the 2 fittings in rear of boat. Drained the oil as well no signs of any coolant, plugs looked great and were replaced. Just purchased the boat and have mechanical knowledge can’t gather a solution have been fooling with past 2 days.

 

[turbosl2]

07 speedster 155. Coolant is leaking into the hull. I have a coolant pressure tool , pump to 13 lbs , I’ve traced all the lines and connections none are leaking, no leaking from the weep hole, no leaking from the pump housing. Can’t seem to narrow where else it could be leaking from. Overnight it will leak out by it self, on the pressure fitting leaks out in under 20 minutes.

Have you checked the Tstat housing. They are known to pop out when the plastic gets old and brittle. A hose clamp around the plastic is a good temp fix. Even when i replaced mine i put a hose clamp back on. Dumb design. Just guessing here since you cant see the leak anywhere and this is the lowest point other than the HX under the hull

 

[Seadoo155]

Found the leak was coming from the return ride plate line. Just above the tunnel for pump