Thanks itsathepete and Lou C for your help. I wanted to give an update. I went back through the system a few more times and finally discovered that my bypass hole in the thermostat was clogged. I had thought the by pass hole was the connection between the large hose and raw water inlet hose...
I changed the circulating pump and it did not make any difference with lowering the pressure in the hose. I am wondering if there is a clog with the water coming into the engine or maybe with the impeller. I am able to see water flowing through all the hoses from the raw water pump to the...
Thanks for the help. I removed the starboard manifold hose and checked the pressure on the large coolant hose and it still appears to be there. Is it possible that the water pump is causing high pressure if it is bad? I’ve checked the thermostat housing really well. Also I pulled both manifold...
Thanks, I will try that tonight. I had removed both but I did not pay attention to the pressure as i was looking for the water strength coming out of them. Thanks again and I will report back.
Has anyone had any experience with a Riser that looks good being clogged on the inside? Water goes through it but not sure if there are restrictions that I can not see.
Hello, thanks for your help in advance. I have used the forum to solve many problems but this is my first post. I have a 2006 Four Winns 348 Vista with dual 5.7 GXi-G motors with 320 hours on them. We have owned the boat for 3 years and never had a problem with the engines. The boat has been...
