safe egt temps in a 5.9 07
09-05-2007, 10:28 AM
#16
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09-06-2007, 03:00 AM
#17
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True the melting point of pure aluminum is : 933.47 K (660.32 °C, 1220.58 °F)
But, the pistons in our engines are an alloy of aluminum with a melting point somewhere ~1450°F.
Other important factors are where the probe is positioned, and of course, duration of the temp. spike.
Haulers run sustained 1300°F+ temps for periods of several minutes running uphill all the time without damage (myself included).
Personally i'm alot less nervous at 1300 than 1400° IMHO
Cheers
Mike
###
But, the pistons in our engines are an alloy of aluminum with a melting point somewhere ~1450°F.
Other important factors are where the probe is positioned, and of course, duration of the temp. spike.
Haulers run sustained 1300°F+ temps for periods of several minutes running uphill all the time without damage (myself included).
Personally i'm alot less nervous at 1300 than 1400° IMHO
Cheers
Mike
###
09-06-2007, 10:43 AM
#18
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I back out of mine at 1250. I have only had to back out of it a couple of times when towing from San Diego to Colorado for hunting. There are some nasty grades in Utah on I-70. Anyhow, 1250 is where I feel comfortable.
05-12-2019, 02:23 PM
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I was yondering if anyone here can tell me what the safe readings are for the 07 5.9. dont tell me that anything over 1200 or 1300 is bad because the truck under a load running stock will hit 1500 climbing hills. Even when i downshift. So I would like a good answer and not some guess. The dealer cant even tell me other then that the 6.7 has egt's above 1300. thanks
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