I recently changed the lower unit, and am having no water out the top 2 ports just below the powerhead, also the engine is getting heated up. any other pumps other than in the lower unit?any advice is appreciated.
you installed a new lower? If you haven't replaced the water pump impeller, do so now. If you did, maybe you forgot the woodruff key, or the pump housing gasket, or the water tube guide grommet. or maybe the water tube guide slipped out of place on reassembly.
well on my mercury i have a water impellor/you have that 2 thermostats/dont know if you have them and a popit valve those 3 things check them
I think that when you put the lower unit back on you may have not gotten the water tube in properly so it is not pumping any water up to the power head.When you replaced your Impeller did you check to be sure there were no pieces of the old Impeller stuck in the housing anywhere?If you have done these things and it still does not pump water then you probably have a stuck thermostat and need to replace it.Hope this helps you and good luck.
Both jtexas and mrfixit are experienced mechanics and know their stuff. The exhaust by-pass which your describing as 2 holes, only get a mist of water, most of it comes out at the bottom of the drive. Depending on model it comes out the center of the prop, or through the skeg-fin. The power head should get warm, but not hot enough to cause water to sizzle when you sprinkle some on the heads. Most common problem, is blockage at the top of the water tube, or the thermostat isn't opening. But if your running on a flush attachment, check the water that's coming out at the exhaust area, it should be warm. I hope this helps! Good luck!