Quote:
Originally Posted by FUNFER2
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Last week I decided to go to work in my 65 fastback, nice cool morning and I hadn't driven it in a few months. Work is normally 200 miles for the day. Left in the early monring, outside temp in the high 50's. Never turned on the electric fan as I was on the highway from the get go, temp ran about 170 or so, which is normal for my car in cool weather..... about mid morning after 2 or 3 stops, got back on the road and temp went down to 145, tapped the gauge a few times, held steady at 145 on the highway, city traffic it did get up to about 170, back on the highway quickly dropped and held on 150.......
Finally made it home around the noon hour and let the car cool off, drained enough water out of the radiator to take out the thermostat out to check it without leaking water all over everything.......
it was one of those high dollar,high flow,balanced thermostats!!!!!!!! I don't even remember putting that one it, must have been some time ago.... Dug around in the shop and found a "standard/OEM" type, 180 with 3 holes in it, tested it and put it in, refilled the radiator and let it warm up, comes up to 180, thermostat opens, temp drops to about 170, then slowly gets back up to and holds on 180..........
Tested the balanced thermostat in the house and it opens fine, just was never closing fully, it's now in the garbage can!!!!!!!!!!!!
I probably put abut 3,000 miles a year on the Mustang, about what the average Cobra would see, so I figured the thermostat may have been rusty, crudded up, but that wasn't the case......
David
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