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Discussion Starter #1
My 66 coupe with 289 4v 4 speed overheated a while ago due to leaking water pump and broken hoses. I replaced water pump, all radiator and heater hoses, thermostat , thermostat housing, radiator and changed to electric fan. Was driving great then randomly overheated again, no signs of a leak anywhere. No air bubbles as i checked for that. Any ideas what I should look at or try next?
 

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WHEN did it overheat? Going down the highway at speed or idling in traffic? How did you KNOW it overheated? Did it puke coolant, smell funny or was it just the gauge that went up? When you did the water pump, etc., did you replace the thermostat? Does your lower radiator hose have an anti-collapse spring?
 

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Discussion Starter #4
I have not adjusted timing or carb.
I drove 10 minutes then stopped went into store when I started the car again the garage showed hot. I drove 5 minutes down the road and smelt burning. When I pulled over and opened hood full of smoke. No signs of a leak
 
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