boat water pump overheating
Overheating can also be caused by a worn or damaged water pump impeller. if you don’t recall the last time you replaced the impeller for your engine or other accessories, consider adding this task to your list of chores, and don’t forget to keep spares in your tool box.. Water pump failure. the most common cause of outboard motor overheating is water pump failure. lack of raw water flow and lack of fresh water can cause water pump failure. check for lack of raw water flow by noting the temperature of the outlet side of the system. a water flow problem is indicated if the water temperature is excessively high.. Replacing a water intake pump is a very easy project but you will need to ensure that you purchase the right model and type of pump to work properly with your engine. if you ever experience overheating with a boat engine then the most likely suspect is the intake pumps. a carrier bag can cause an engine to overheat for no apparent reason.. 
boat water pump overheating Overheating mercruiser - running cold one minute @ 75 degrees then running hot at 195 degrees weird - duration: 9:03. affordable marine service 4,338 views 9:03. I have a 2001 supra legacy that has been giving me overheating problems. i originally thought the problem was the thermostat since i removed the t-stat (160f) and housing and verified that water was making its way up through the block and up to the thermostat housing. replaced the t-stat and problem appeared to be solved the next weekend of running..
