94 over heat

first of all thank you all for your kind words and well wishes from sanity and I. Ok to the problem with the 94 it overheated and went in to stagger back home mode last week but I shut her down and got towed back to the docks ( first time i ever had to do that how I was mortified) so I dug into it the next day changed the raw water pump impeller checked the in line filter screen changed the thermostat by the way the impellor was fine no fin damage or missing fins.changed it anyway.back flushed the supply line only thing i did notice was the screen filter gasket was chewed up but didn't leak so i put her back in the water on the trailer ( i am not that trusting )same thing got the red idiot light shut it down pulled it out and there she sits now i am waiting on a new recirc pump from ski dim and t housing ( it looked like an indiana jones cave all kind of corrosion and crap on the inside so i will change that hopefully that will fix it . Any clues why the temp gauge didn't go above 120 thanks every one

Does it overheat all the time, at idle, cruising? Mine was overheating at idle, had a hard to see crack in the line right at the clamp below the tranny cooler.

Dump your water strainer and make sure it fills back up. I have no idea why, but on one occasion after doing some work (including a new water pump impeller) my boat wasn't able to create enough suction to pull water in. I only noticed because I had dumped the strainer and it was still bone dry when I tried to warm the boat up on the trailer. Maybe the trailer wasn't backed far enough in (although I'm about 95% sure it was), maybe something wasn't spinning right, or maybe it just needed a couple of revs on the engine to create enough suction. In any case, pulling the water pump impeller, putting it back together, and trying again worked for me.

Pete you and Eric were right on target. Put her in the water today started it up and still had the light. This time the motor did come up to 140 , so the thermostat fixed that problem motor stayed cool but still had the light so i disconnected the wire from the temp sensor and grounded it with full deflection on the guage . then disconnected the oil pressure sender gauge showed the same then i disconnected the sender off of the side of the oil pressure sensor and lost the idiot light so the sender unit is bad going to replace it tommorrow. Thanks everyone   I don't feel bad about replacing the plumbing ,and recirc pump didn't cost that much for piece of mind the old parts were pretty corroded and were going to need changed anyway thanks again.