Bros, why is my daily overheating?
#21
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Yes to the car over heats, or yes to the fans come on and shut off? If you idle the car with AC off with the hood open, does the driver side fan eventually turn on and then back off? If so what does the temp gauge look like during this?
How many times did you let the fans turn on and off while burping with the funnel? I generally let it go 3 times before I consider it good and then top off and put the cap on.
I think your thermostat is sticking personally.
How many times did you let the fans turn on and off while burping with the funnel? I generally let it go 3 times before I consider it good and then top off and put the cap on.
I think your thermostat is sticking personally.
#23
Tour de Franzia
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I'm going to pressure test again tomorrow to check for leaks.
The old one checked out in a boiling pot, put it back in, then replaced with a new one that checked out. I considered shooting the waterneck to make myself feel better.
#26
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The car should not overheat while idling with the AC on. Either insufficient coolant flow through the radiator, or insufficient fan airflow through the radiator, or crud built up in radiator acting as insulation. Doublecheck that both fans are indeed coming on and that neither is spinning backwards.
#27
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The car should not overheat while idling with the AC on. Either insufficient coolant flow through the radiator, or insufficient fan airflow through the radiator, or crud built up in radiator acting as insulation. Doublecheck that both fans are indeed coming on and that neither is spinning backwards.
Or, I have a bad calibration on the sensor and 3 bad radiator caps. 1 is old, one is from China, and the other is from the green car.
#28
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So what are the chances your radiator has gone to crap?
Edit: if the thermostat is fine, and coolant is flowing, and the fans are coming on, and you used the Magic Funnel of No-Air-Pocketness, and the fans are actually pulling measurable airflow through the mouth of the car, then seems to me there's lousy heat transfer through the radiator itself. We're about out of variables. Can water pumps go bad other than failing at the bearing and leaking?
Edit: if the thermostat is fine, and coolant is flowing, and the fans are coming on, and you used the Magic Funnel of No-Air-Pocketness, and the fans are actually pulling measurable airflow through the mouth of the car, then seems to me there's lousy heat transfer through the radiator itself. We're about out of variables. Can water pumps go bad other than failing at the bearing and leaking?
#33
Got an IR temperature probe? You might remove the fans temporarily and point that probe at the back of your radiator. See if there's any cold spots. It might be a pain since you taped on the fans, but at least you'd be certain the rad was working correctly.
#35
As the flow around a cylinder decreases, the deltaT between the cylinder wall and the surrounding coolant decreases, leading to less heat transfer. This can overload the system as it increases in local temps raising average temps. It also later crops up in more serious problems like causing headgasket failure, which is usually later blamed for the original overheating issue.
Most cars don't need reroutes, but all of our cars would benefit from a reroute. Our local heat and humidity can stress a car nearly as much in traffic as FI or track use, and a reroute has been the best solution in my experience.
#37
I replaced the radiator with a Mishimoto, and it holds at 210-214 under the same conditions in 110-115 degree ambient temps with the A/C running full blast..
#39
Was there any signs of somone using a stop leak product in the past?
Have you taken the water pump off of this car? I have seen the prop wear the block and or housing enough to let water flow around the pump so to speak. Ya might take a listen to the pump while running to maybe hear a milling machine.
Have you taken the water pump off of this car? I have seen the prop wear the block and or housing enough to let water flow around the pump so to speak. Ya might take a listen to the pump while running to maybe hear a milling machine.
#40
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Was there any signs of somone using a stop leak product in the past?
Have you taken the water pump off of this car? I have seen the prop wear the block and or housing enough to let water flow around the pump so to speak. Ya might take a listen to the pump while running to maybe hear a milling machine.
Have you taken the water pump off of this car? I have seen the prop wear the block and or housing enough to let water flow around the pump so to speak. Ya might take a listen to the pump while running to maybe hear a milling machine.
I jacked the nose of the car way up in the air with magical funnel of ultimate success and no air came out. The car idled up, one fan came on and never turned off. Number 2 came on then both turned off. With the AC, it boils over the cap. The cap looks great and physically feels stiffer than the old one. I'm perplexed. I'm guessing a water-pump problem. I need to squeak by until September when I take a week off from work to do the swap and tune the car. I'd do the swap now, but not in this heat.