Re: 30hp with temp problem?
Hello tsl....Strange problem. First time I've heard of a temp sensor causing a motor to run bad.<br /><br />First we need to verify that the engine is overheating. Even though the water may be pouring out the tell tale, the t-stat could be stuck closed. With the engine at idle and engine warmed up, you should be able to lay your fingers on the flat area on top of the block just forward of the head for several seconds before having to remove them. If you can't, check the t-stat. If would be a real good idea to replace both the t-stat and water pump impeller if you have no idea when the last time this was done.<br /><br />The temp sensor is a bimetal gizmo. Temp extremes will cause it to close making up a circuit to the alarm horn mounted in the control box or if the key switch is in the dash, connected to the wire harness under the dash. If you get continuity across the sensor weather cold or hot, the sensor is bad and should be replaced. From your post, it would appear though that the sensor is doing what it should be doing and the engine is over heating. <br /><br />As I have already posted, replace the t-stat and impeller. Should take care of the problem.<br /><br />Keep us posted.
