Should my engine run this hot? [picture]
10-13-2014, 01:59 PM
#1
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Thread Starter
Should my engine run this hot? [picture]
I was wondering if my engine should run this hot after driving for about ten minutes. After replacing the radiator and thermostat . I put in a durlast thermostat.
Last edited by Crazy_Guy97; 11-30-2014 at 04:55 PM.
10-13-2014, 02:08 PM
#2
Registered User
Not too hot......... if the gauge is accurate.
These gauges were never too accurate, and now they are 20+ years old.
Get and use an IR temp gun, and see what is really going on.
Peace of mind is a wonderful thing.
These gauges were never too accurate, and now they are 20+ years old.
Get and use an IR temp gun, and see what is really going on.
Peace of mind is a wonderful thing.
10-13-2014, 02:29 PM
#5
Registered User
With a thermostat installed, coolant enters the top of the radiator @ 180'f+.
This is too hot to lay your hand on for more than the shortest touch.
Generally speaking, if the cooling system is full of liquid, and the coolant does'nt boil over, the engine is not dangerously hot.
This is too hot to lay your hand on for more than the shortest touch.
Generally speaking, if the cooling system is full of liquid, and the coolant does'nt boil over, the engine is not dangerously hot.
10-13-2014, 03:24 PM
#7
After you drain and refill the system it will sometimes empty the reservoir as it slowly purgues out bubbles. I would suggest checking and filling it to the "full" line when cold for at least 3 heat cycles. If it keeps pulling a lot out of the reservoir after a few heat cycles then you have a leak somewhere.
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10-13-2014, 05:06 PM
#8
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if your heat working? might be a simple air pocket. those cheap thermostats never have a bleeder nipple in them so i drill a real small hole in them to help with air pockets.
10-13-2014, 05:48 PM
#9
+1 for using more accurate temp gauge & monitoring reservoir level.
Gage alone while driving is not a good indicator. The weekend my head gasket blew, I was driving in 3-digit temps in San Bernardino County and noticed my gage reading lower than normal. I thought that maybe because I was at freeway speed. Alas! The night we drove out of the trail head, she overheated, and I found out HG had blown. Theory behind the low gauge reading is because of blown HG, coolant was overflowing while I was driving so when I stopped, there was no clue on the ground. Coolant level had gone so low so it was not touching the temp sender anymore.
I'm considering installing one that actually reads numbers (°F), with temp sender installed lower on the engine block so it would always read coolant level even when level goes low. potential location for temp sender is port just below and to right of freeze plug on right on this Photo Courtesy of Chefyota4x4.
+1 for oldblue ... talking about the jiggle valve
Gage alone while driving is not a good indicator. The weekend my head gasket blew, I was driving in 3-digit temps in San Bernardino County and noticed my gage reading lower than normal. I thought that maybe because I was at freeway speed. Alas! The night we drove out of the trail head, she overheated, and I found out HG had blown. Theory behind the low gauge reading is because of blown HG, coolant was overflowing while I was driving so when I stopped, there was no clue on the ground. Coolant level had gone so low so it was not touching the temp sender anymore.
I'm considering installing one that actually reads numbers (°F), with temp sender installed lower on the engine block so it would always read coolant level even when level goes low. potential location for temp sender is port just below and to right of freeze plug on right on this Photo Courtesy of Chefyota4x4.
+1 for oldblue ... talking about the jiggle valve
10-13-2014, 06:11 PM
#10
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As was said, if you're not boiling water out, the engine isn't running so hot as to damage it. Keep in mind that too cold isn't a good thing, either. It results in poor fuel vaporization and less than optimal lubrication.
Unless you're continuing to lose coolant, I see nothing to worry about.
10-13-2014, 07:39 PM
#11
Registered User
That is exactly where my normal reading is, about 1 needle width above horizontal. If you continue to lose coolant you better figure out where it's going.
10-14-2014, 06:43 AM
#14
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Thread Starter
If you mean craigslist yeah . I think I'm going to take the truck to my grandparents house some time this week to fix the oil gasket. I think my oil is is making my engine run to hot. Due to not change it because of the oil gasket . I read in the manual that in proper grade can make over heat. Is that true or not?
Last edited by Crazy_Guy97; 10-14-2014 at 08:31 AM.
10-14-2014, 09:47 AM
#16
With engine cold, and radiator cap off, watch if coolant is splashing/bubbling in radiator really badly, not just from vibration. That would indicate bad HG.
Also, with radiator cap known to be absolutely good, there should be no bubbling of coolant into the reservoir.
Myth.
Maybe if it's Extremely IMProper grade, like using 80W-90 gear oil in engine - LOL!
Also, with radiator cap known to be absolutely good, there should be no bubbling of coolant into the reservoir.
Myth.
Maybe if it's Extremely IMProper grade, like using 80W-90 gear oil in engine - LOL!
10-14-2014, 06:49 PM
#19
