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06-07-2016, 01:00 PM
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#1 |
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Senior Member
Join Date: Aug 2014
Location: MA
Posts: 888
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How hot is too hot
I know these flatty's like to run on warm/hot side. In traffic I see my temp hitting 190. Which I believe. Is ok. But at what point or temp should I say time to pull over and wait for cool down?
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06-07-2016, 01:16 PM
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#2 |
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Senior Member
Join Date: May 2010
Location: MN
Posts: 7,053
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Re: How hot is too hot
190 is great in traffic, as far as I'm concerned.
200-210 is getting real hot. Thing is, once you shut down it'll go up another 10 degrees without the pumps moving water. Just my thoughts. |
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06-07-2016, 01:22 PM
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#3 |
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Senior Member
Join Date: May 2010
Location: Columbia, SC
Posts: 1,579
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Re: How hot is too hot
The manual says as long as it's not boiling.
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06-07-2016, 02:34 PM
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#4 |
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Senior Member
Join Date: May 2010
Location: MN
Posts: 7,053
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Re: How hot is too hot
Roughly...
Water boils @ 212 Antifreeze @ 265 265 degrees sounds a little high 
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06-07-2016, 02:52 PM
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#5 |
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Senior Member
Join Date: May 2010
Location: (Not far enough...) Outside of DC
Posts: 3,387
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Re: How hot is too hot
Hi Everyone, Tinker, remember that 265 degree number includes a 15psi pressure cap. Unpressurized it's about 223. Add 3psi per one pound of pressure.
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-Jeff H Have you thought about supporting the Early Ford V-8 Foundation Museum? |
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06-07-2016, 03:09 PM
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#6 |
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Senior Member
Join Date: May 2010
Location: MN
Posts: 7,053
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Re: How hot is too hot
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Some more discussion on flathead temperature ... https://www.fordbarn.com/forum/showth...3954&showall=1 |
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06-07-2016, 07:42 PM
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#7 |
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Senior Member
Join Date: Aug 2014
Location: MA
Posts: 888
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Re: How hot is too hot
Ok so if I'm reading this right, at 210 I should pull over and open hood. Logic is 210 + 10 rise after shut off = 220 danger zone - as my cars are no pressure caps.
That right?
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Thanks - 30-9 1939, 1940 |
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06-07-2016, 07:57 PM
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#8 |
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Senior Member
Join Date: May 2010
Location: Idaho
Posts: 150
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Re: How hot is too hot
Start by checking your gauge to be correct. Use a thermal gun to verify the gauge and go from there. I have seen lots of gauges to read much higher than true Temp.
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06-07-2016, 08:39 PM
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#9 | |
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Senior Member
Join Date: Oct 2010
Location: Orem, Utah
Posts: 5,762
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Re: How hot is too hot
Quote:
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