Coolant temp too low.
03-25-2008, 02:12 AM
#1
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Coolant temp too low.
So, my coolant system is stock with the exception of the begi coolant reroute. However, coolant never gets to operating temperature. It will get to about 140*F but thats about as high as it will go. I thought maybe the thermostat was stuck open so i replaced that to no avail.
I know i have a lot of problems. I really do search first! It seems like i have some really strange problems. Just tell me if i ask too many questions and i will exhaust some other sources first.
Thanks so much!
-Wes
I know i have a lot of problems. I really do search first! It seems like i have some really strange problems. Just tell me if i ask too many questions and i will exhaust some other sources first.
Thanks so much!
-Wes
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03-25-2008, 09:09 AM
#4
What T-stat did you use? Whats the ambient temp up there? This morning it is 55* here and my coolant temps didnt go above 180*.
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03-25-2008, 10:02 AM
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Before i have had normal temps with the mspnp before. I replaced the thermostat with what autozone said was oem temp. It said 82*C on it. I just took an hour drive and the car did finally reach operating temperature but it took at least 25 minutes. The temperature outside is low 40's i think. There was frost on my car when i went out this morning.
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03-25-2008, 11:02 AM
#13
Yes, since your coasting, the water flow in the engine is slower. This will cause the water in the radiator to get nice and cool and as soon as you bring the revs back up, you move all the nice cool water from the radiator back to the motor. I used to see this happen all the time on my NA with the 55mm KOYO on cool days.
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03-25-2008, 11:16 AM
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Yes, since your coasting, the water flow in the engine is slower. This will cause the water in the radiator to get nice and cool and as soon as you bring the revs back up, you move all the nice cool water from the radiator back to the motor. I used to see this happen all the time on my NA with the 55mm KOYO on cool days.
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03-25-2008, 03:10 PM
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Yes, since your coasting, the water flow in the engine is slower. This will cause the water in the radiator to get nice and cool and as soon as you bring the revs back up, you move all the nice cool water from the radiator back to the motor. I used to see this happen all the time on my NA with the 55mm KOYO on cool days.
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03-25-2008, 05:25 PM
#19
If we are talking the Begi reroute that takes the outlet from the heater core and moves it to the bottom radiator hose, there should be no difference.
If we are talking about a newer reroute, I haven't thought it out and would like to see the final resulting diagrams.
Essentially, if you are allowing more of your coolant to get to the radiator that is not being restricted by the thermostat(as in Paul's set-up), it will take longer to come to operating temperature, especially with a larger radiator.
In a standard set-up, and in the referenced first Begi reroute, no water flow is present in the radiator until the thermostat cracks open.
The OEM thermostat is a 2 stage unit that allows a small amount of water to circulate at a little lower temperature before the main opens, thereby keeping a large volume of cold water from suddenly hitting the motor from the cooled radiator..
If we are talking about a newer reroute, I haven't thought it out and would like to see the final resulting diagrams.
Essentially, if you are allowing more of your coolant to get to the radiator that is not being restricted by the thermostat(as in Paul's set-up), it will take longer to come to operating temperature, especially with a larger radiator.
In a standard set-up, and in the referenced first Begi reroute, no water flow is present in the radiator until the thermostat cracks open.
The OEM thermostat is a 2 stage unit that allows a small amount of water to circulate at a little lower temperature before the main opens, thereby keeping a large volume of cold water from suddenly hitting the motor from the cooled radiator..
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