The task is complete. I have R & R'd the thermostats and there was no question that the old ones were caked with calcium or other crud. No drilling, no power head removal, just a lot of patience and usefull tips from the folks here at iboats. [colour=blue]Thank You [/colour]to everyone who have replied to my posts! d
I have pictures of the entire process and when I have time will create a link.
One curiosity is now the engine runs cool as a cucumber. I shoot it with my infrared gun and the heads show about 110 degrees. She's running fine but, my other motor that is identical runs at about 143 degrees which is to spec. I've pulled the hoses and checked the thermostats through the hose hole and they appear to not be stuck in the open position. [colour=red]How are the relief valves suppose to work? [/colour] They were a BIG pain the @ss to get everything back in and the bolts started. I'm pretty certain everything is assembled correctly since I took pictures and can review what I did. I'm not too worried about the engine running cool since the water is pretty warm here. She starts right up, idles good, and no o-temp warnings after several minutes on the muffs. Water is coming out the exhaust ports just like my other motor, out the prop and out of all the other places as normal. Interesting though that my pressure gage on the dash shows almost nil for water pressure until I rev it up. Tell Tale looks fine. I checked for kinks in the hose to the gage. I'm thinking that the gage hose may have some crud in it since I ran the water hose through the heads with the thermostats off to get any junk out of the system.
I have pictures of the entire process and when I have time will create a link. One curiosity is now the engine runs cool as a cucumber. I shoot it with my infrared gun and the heads show about 110 degrees. She's running fine but, my other motor that is identical runs at about 143 degrees which is to spec. I've pulled the hoses and checked the thermostats through the hose hole and they appear to not be stuck in the open position. [colour=red]How are the relief valves suppose to work? [/colour] They were a BIG pain the @ss to get everything back in and the bolts started. I'm pretty certain everything is assembled correctly since I took pictures and can review what I did. I'm not too worried about the engine running cool since the water is pretty warm here. She starts right up, idles good, and no o-temp warnings after several minutes on the muffs. Water is coming out the exhaust ports just like my other motor, out the prop and out of all the other places as normal. Interesting though that my pressure gage on the dash shows almost nil for water pressure until I rev it up. Tell Tale looks fine. I checked for kinks in the hose to the gage. I'm thinking that the gage hose may have some crud in it since I ran the water hose through the heads with the thermostats off to get any junk out of the system.