C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Still overheating...

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Old Mar 24, 2014 | 05:29 PM
  #21  
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Originally Posted by DanielRicany
Yes. But if I come to a stop light it'll drop down. When I consistently have a load on it it climbs up.

Also someone I talked to said that my Temperature Sending Unit is placed in an area that is hotter than other areas. It's between Cylinder 1 and 3 on the drivers side in between the headers. Someone said I may get a hotter reading there than I would in a place next to the thermostat housing. Any input on that? Thanks!
That temp sensor is only for reading temp to show on the dash temp guage. It does not control cooling or anything else. You can replace it since it's cheap, but it won't solve your over heating problem.
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Old Mar 24, 2014 | 05:30 PM
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what do you have your fans set to come on at and what temp stat do you have in
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Old Mar 24, 2014 | 05:32 PM
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Originally Posted by GQ-ROD
That temp sensor is only for reading temp to show on the dash temp guage. It does not control cooling or anything else. You can replace it since it's cheap, but it won't solve your over heating problem.
Yes but maybe it is misleading me.
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Old Mar 24, 2014 | 05:33 PM
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Originally Posted by hooked073
what do you have your fans set to come on at and what temp stat do you have in
Fans are supposed to come on at about 88* C, and the thermostat is 195*
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Old Mar 24, 2014 | 05:35 PM
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so you changed your fan settings?
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Old Mar 24, 2014 | 05:48 PM
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Originally Posted by DanielRicany
Yes but maybe it is misleading me.
Silly question ( not to sound abrasive )................has your engine actually overheated????

Or do you just think it's over heating because the temps on the dash gauge say so?
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Old Mar 24, 2014 | 06:17 PM
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Originally Posted by GQ-ROD
Silly question ( not to sound abrasive )................has your engine actually overheated????

Or do you just think it's over heating because the temps on the dash gauge say so?
It hasn't actually over heated like boiling out of the overflow or anything like that. Just too hot it went to 237.
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Old Mar 24, 2014 | 06:22 PM
  #28  
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Originally Posted by DanielRicany
It hasn't actually over heated like boiling out of the overflow or anything like that. Just too hot it went to 237.
Ok that explains it, it's normal, these cars run way hotter for emissions reasons. so you are ok, you could throw in a lower temp thermostat if you want lower temps. do a search and you will find plenty of posts on this.

you could also install a fan temp switch that will make the fans come on sooner to lower the temps. also tons of posts on this.click the link below.

http://www.ecklerscorvette.com/corve...1984-1995.html

Last edited by GQ-ROD; Mar 24, 2014 at 06:27 PM.
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Old Mar 24, 2014 | 08:05 PM
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Originally Posted by GQ-ROD
......you could throw in a lower temp thermostat if you want lower temps. .....
A t-stat is just valve that opens on a predetermined temp. It does not lower temp, unless the fans are programmed to activate in concert with a lower temp t-stat.

Assuming the engine temp is 210 with a 195 t-stat, a 160 t-stat
will not lower the operating temp.

The purpose of the t-stat is to enable the engine to reach operating temp sooner, not provide cooling.
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Old Mar 24, 2014 | 09:14 PM
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The purpose of a stat is use to maintain the temp of an engine
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Old Mar 24, 2014 | 09:35 PM
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Perhaps the most common example of purely mechanical thermostat technology in use today is the internal combustion engine cooling system thermostat, used to maintain the engine near its optimum operating temperature by regulating the flow of coolant to an air-cooled radiator. This type of thermostat operates using a sealed chamber containing a wax pellet that melts and expands at a set temperature. The expansion of the chamber operates a rod which opens a valve when the operating temperature is exceeded. The operating temperature is determined by the composition of the wax. Once the operating temperature is reached, the thermostat progressively increases or decreases its opening in response to temperature changes, dynamically balancing the coolant recirculation flow and coolant flow to the radiator to maintain the engine temperature in the optimum range. This might interrest you seabright.
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Old Mar 24, 2014 | 09:53 PM
  #32  
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Originally Posted by hooked073
Perhaps the most common example of purely mechanical thermostat technology in use today is the internal combustion engine cooling system thermostat, used to maintain the engine near its optimum operating temperature by regulating the flow of coolant to an air-cooled radiator. This type of thermostat operates using a sealed chamber containing a wax pellet that melts and expands at a set temperature. The expansion of the chamber operates a rod which opens a valve when the operating temperature is exceeded. The operating temperature is determined by the composition of the wax. Once the operating temperature is reached, the thermostat progressively increases or decreases its opening in response to temperature changes, dynamically balancing the coolant recirculation flow and coolant flow to the radiator to maintain the engine temperature in the optimum range. This might interrest you seabright.
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Old Mar 24, 2014 | 10:24 PM
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[QUOTE=hooked073;1586488028...........Onc e the operating temperature is reached, the thermostat progressively increases or decreases its opening in response to temperature changes.... This might interrest you seabright.[/QUOTE]

Sometimes a little knowledge is dangerous..... reread my example.
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Old Mar 24, 2014 | 10:33 PM
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it is very clear once operationg temp is reached the stat will fluacate to maintain the temp true or false?
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Old Mar 24, 2014 | 10:35 PM
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It appears you do not think the thermost does nothing to maintain the engine temp. If this is the case you need to get educated
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Old Mar 24, 2014 | 10:37 PM
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Im lost in your example because in fact if you install a 160 stat inplace of a 195 stat you infact will drop the running temps to 160 if your system is up to snuff
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Old Mar 24, 2014 | 10:41 PM
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Daniel, run a 180 t stat and set fans on to 90C and off at 85C. I also drill a 1/8" hole off to the side of my t stat to help settle all air out of the system. This is my personal choice and I've been doing it for many years. I'm sure someone here will have a reason why I'm all fawked up, so let me be the first to say they're most likely right, but it is my 2 cents.
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Old Mar 24, 2014 | 10:42 PM
  #38  
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now of course it needs the help of it friends the rad,waterpump and cooleant. But with these things working together you car should run at the set point of the stat and the stat is what maintains it at this temp.
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Old Mar 24, 2014 | 10:47 PM
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mr willis nothing really wrong with that. your set temp is 180 you have your fan coming on around 194 so the higest temps you should see are probley no more then 200 thous givinng the fan time to kick in and start pulling air across the rad
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Old Mar 24, 2014 | 10:50 PM
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Im not sure he really has a problem after some of the post today I was hoping he would come back I would love to see what his temps are at a cruise of 50 pmh or so. This would tell a lot
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