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Old 04-30-2013, 03:25 PM   #1
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Manuel B's Avatar
Join Date: Mar 2012
Location: Alabama
Posts: 144
460 Ford thermostat self destructed

I have never seen a thermostat break apart before, this last Thursday through Sunday I was camped at Road Atlanta for the vintage/historic races, on the way home I noticed my water temp rising, I pulled into a gas station and checked things out but saw nothing wrong, by this time I was at 280 deg. I let it cool down and refilled it, pulled back onto the interstate and right away the water temp started rising, and worse, my oil temp was also rising, by the time I reached the next exit, a rest stop my oil temp was 300 deg. water was at 280 and oil pressure was 20 psi vs my normal 60 psi, this time the top radiator hose had blown off, I checked my oil and nothing was showing on the dipstick, it was full 4 days ago, I topped off the oil, let it cool and refilled the water, but the weird thing was the engine temp stayed high even though I could stick my finger in the radiator and it was just barely warm, so I pulled off the thermostat housing and saw the thermostat was broken and was not opening at all, I left it out for the rest of the trip home and water never went over 210, oil temp went back down to 180 and oil pressure was back to 60, I couldn't believe it didn't blow the engine, I didn't make it home without more troubles, while working on the thermostat I broke the big wire terminal on the alternator, but didn't notice because of the rubber boot holding it in place, I was showing 10 volts and it finally quit 5 miles from home in the left turn lane, I swapped the battery and connected half of the terminal in the middle of the road and was on my way again, only thing I find damaged is the water temp gauge, it won't go below 180 even the next morning before starting it up. rough weekend.
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1990 34' Hawkins Motor Coach, Oshkosh/460 Ford EFI. '97 Subaru Impreza 5 speed towd, NorthEast Alabama.
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Old 05-01-2013, 11:53 AM   #2
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Who was the thermostat manufacturer, Ford, Stant?

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Old 05-02-2013, 09:07 AM   #3
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Join Date: Mar 2012
Location: Alabama
Posts: 144
There is no brand marked on it, says, USA, PATENTED, TO^RAD, and 54mm, it's a 180 deg. and that's what I bought to replace it, have looked up what others are using in the LSG-875 460" can't find a reccommended temp.
1990 34' Hawkins Motor Coach, Oshkosh/460 Ford EFI. '97 Subaru Impreza 5 speed towd, NorthEast Alabama.
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ford, thermostat

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