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Old 01-19-2015, 06:33 AM   #11
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Location: Eustis FLORIDA
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Year: 1992
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Quote:
Originally Posted by cowlitzcoach View Post
I have never heard the DT466 described as a hot running engine. Quite the reverse is true.

When it was designed 60 years ago for combines and tractors it was designed to run at 160 degrees. One of the problems IHC is having with it today is to make it run at 200 degrees for emissions purposes.

Unless your bus is 2010 or newer you should be running at temperatures no higher than 190 or 195 after a real hard pull uphill.

The first thing to check is your temperature guage. If it is the OEM guage i wouldn't trust the reading. Check to make sure your radiator is letting air through. Then check the temperature differential between the top and bottom.

Good luck.
Although I'm just going off the factory gauge and am fine with that, I totally agree with you. Mine runs at 160 almost all the time. It did climb a little bit going up Monteagle in Tn. Less than 200 iirc. That was my bad for hauling so much ass up it though.
I may look into intercooling it once the conversion and general restoration work are completed.
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Old 08-06-2015, 09:11 PM   #12
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Have you checked your thermostat? Its an easy and el cheapo thing to do...put in a 160'F thermostat. Maybe your old one is starting to cook. Flushing out the rad is never a bad idea either. I take mine right out and stick a gardenhose full blast down its throat til the rust and crap is gone.
First thing I would do is take the thermostat right out and go for a hiway run. If it overheats still...could be the pump. It could also be something evil like blocked oil passages....i cant remember now...starts with an R and its blue liquid. Rislone! Does a beauty job of cleaning everything to brand new and sparkly. Does it sound like a sewing machine? I don't wanna be the boogyman...but throw in some lucas oil too. The beauty about rislone is you can leave it in there...its not a flush and if your only half way to an oil change thats fine...throw it in. Its like 10 bucks or something.
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Old 08-06-2015, 09:18 PM   #13
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Have you checked your thermostat? Its an easy and el cheapo thing to do...put in a 160'F thermostat. Maybe your old one is starting to cook. Flushing out the rad is never a bad idea either. I take mine right out and stick a gardenhose down its throat til the rust and crap is gone.
First thing I would do is take the thermostat right out and go for a hiway run. If it overheats still...could be the pump. It could also be something evil like blocked oil passagesl....i cant remember now...starts with an R and its blue liquid. Rislone! Does a beauty job of cleaning everything to brand new and sparkly. Does it sound like a sewing machine? I don't wanna be the boogyman...but throw in some lucas oil too. The beauty about rislone is you can leave it in there...its not a flush and if your only half way to an oil change thats fine...throw it in. Its like 10 bucks or something.
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Old 08-06-2015, 11:13 PM   #14
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Year: 1993
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Engine: International Navistar DT360
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Originally Posted by nevrenufhp View Post
230 is ABSOLUTELY a no-no!
220, and it's time to pull over. Any hotter will mess up the cylinder liner Orings, they get brittle, and start leaking coolant into the oil.

My DT360 hit the top of the gauge today after a two mile drive. Turns out all my coolant is in my oil now.
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Old 08-06-2015, 11:28 PM   #15
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Old 08-07-2015, 07:03 AM   #16
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my dt ran hotter than it should when i first got it. that was because some dumnass had removed the t-stat! installed 160 t-stat and the gauge stays at 160 even climbing long grades of the ozarks.
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Old 08-07-2015, 07:19 AM   #17
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Originally Posted by onenationundergoat View Post
My DT360 hit the top of the gauge today after a two mile drive. Turns out all my coolant is in my oil now.
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Old 08-07-2015, 09:56 PM   #18
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maybe its a good time to learn yourself

Straight 6's are a ton easier than a v8 like mine for head gaskets...
And while you're in there you can get a good look at your top end health!
Make sure all the holes line up with the new gasket....
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Old 08-07-2015, 10:01 PM   #19
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unfortunately, you will now need to replace all the bearings, they are pretty much shot at this point
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Old 08-07-2015, 11:59 PM   #20
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Originally Posted by rock649 View Post
Straight 6's are a ton easier than a v8 like mine for head gaskets...
That's the whole reason I bought the straight 6 in the first place! At least we'll leave knowing that everything's in good working order.
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