175 Mercury, overheating

Replaced complete waterpump, new diaphram for pressure relief valve. Still only have intermittent stream from tell tale hole. I wonder if the tube from the pump may be cracked or a bad connection at the engine. Can I determine if that may be the cause if I remove lower unit and lower skirt from the engine. Also is there anything complicated about removing the skirt.

Any other ideas would be appreciated.

I read about a screen that may be plugged, is that also under the skirt?

Thanks

feel the side cover and see if it is getting hot might be restrection in tale tale hose or thermostat

Chech the water pump housing.

Poppet valve?