So, straight to the point--my 96 GTS is overheating after only short runs (20-30 minutes). At first I thought the temperature sensor was going bad, I got a replacement used sensor, seemed to test out fine (boiling water test--no continuity even at 210 F), but I'm still getting a continuous squeal after only 20-30 minutes of running. While in the water, the top of the motor really has been too hot to touch (even the inside of the engine compartment feels hot). I checked the outside temp of the top of the engine after getting home, and it was a bit north of 165 F (inside temp could be higher?)--I flush the engine and the top and sides immediately cool down by 50+ degrees. Can I assume this is a waterflow problem?
1. Checking the pisser ports, there's a freely flowing stream coming from the top of the tuned pipe--but nothing from the cylinderhead pisser, and I recall it used to shoot out in irregular bursts. Checked both pisser hoses, no obstructions. Poked wires into the pisser ports on the hull, no obstructions.
2. I checked the intake opening and intake hoses leading to tuned pipe--no obstructions.
3. I disconnected the tuned pipe, hooked up hoses and sprayed water into both fittings--smaller flows to the exhaust area, larger exits at top of tuned pipe and flows freely from both divides to the manifold.
4. I also did a cursory check of the other clear hoses from engine leading to the large water exit on the hull--water in each, and the hull hole is completely unobstructed.
5. Pulled off the motor top plate, peered into cylinder jugs, all appears fine--can't really get beyond the cylinderhead plate as I suspect 1-2 bolts are on the verge of snapping, no tools to take care of that right now :facepalm:
I've read elsewhere that engines run in sandy areas will result in buildup blocking where the exhaust manifold divides water at the engine jugs--and this unit is frequently used at the beach. I have no spare gaskets, but should I remove the exhaust manifold and to try and dig out anything that might be inside?
Any other ideas on what it could be before I attack the engine? Could it be an exhaust problem (engine compartment does get quite hot)?
TIA--will take any ideas--I've only got a day or two to mess with this before it has to be put back together for storage...
1. Checking the pisser ports, there's a freely flowing stream coming from the top of the tuned pipe--but nothing from the cylinderhead pisser, and I recall it used to shoot out in irregular bursts. Checked both pisser hoses, no obstructions. Poked wires into the pisser ports on the hull, no obstructions.
2. I checked the intake opening and intake hoses leading to tuned pipe--no obstructions.
3. I disconnected the tuned pipe, hooked up hoses and sprayed water into both fittings--smaller flows to the exhaust area, larger exits at top of tuned pipe and flows freely from both divides to the manifold.
4. I also did a cursory check of the other clear hoses from engine leading to the large water exit on the hull--water in each, and the hull hole is completely unobstructed.
5. Pulled off the motor top plate, peered into cylinder jugs, all appears fine--can't really get beyond the cylinderhead plate as I suspect 1-2 bolts are on the verge of snapping, no tools to take care of that right now :facepalm:
I've read elsewhere that engines run in sandy areas will result in buildup blocking where the exhaust manifold divides water at the engine jugs--and this unit is frequently used at the beach. I have no spare gaskets, but should I remove the exhaust manifold and to try and dig out anything that might be inside?
Any other ideas on what it could be before I attack the engine? Could it be an exhaust problem (engine compartment does get quite hot)?
TIA--will take any ideas--I've only got a day or two to mess with this before it has to be put back together for storage...
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