120 Lehman when I start up I get coolant coming out exhaust .. just at startup it’s visible...at rest there is small amount that it’s lost in the expansion tank ... I removed exhaust elbow and I think it’s the gasket .. has anyone had this before ?
120 Lehman when I start up I get coolant coming out exhaust .. just at startup it’s visible...at rest there is small amount that it’s lost in the expansion tank ... I removed exhaust elbow and I think it’s the gasket .. has anyone had this before ?
Coolant is usually at 15 psi or more. Salt water is not really under pressure, but has a high flow rate. When the engine shuts down and coolant no longer circulates, the coolant next to the cylinders gets overheated and causes the pressure to rise at a time where there is zero pressure on the salt water side. So the common source for coolant in the exhaust is a small leak between the coolant and salt water in the heat exchanger. Typically it would be seen at startup.
I still want to know how you can see it?