Later 928 running hot? Maybe this is why
#16
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#18
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generally, the steam from boiling raises the volume, and before it could ever condense, even if it could, it wouldnt as the volume would just go up, pushing the water out the overflow tube via the pressure cap.
we have some experience here. with scots bad headgasket, he would run the car with the overflow going to a bottle in the cabin. when it got to be 1/2 gallon full, he would start to over heat and have to come in. usually after 5 -7 laps.
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we have some experience here. with scots bad headgasket, he would run the car with the overflow going to a bottle in the cabin. when it got to be 1/2 gallon full, he would start to over heat and have to come in. usually after 5 -7 laps.
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I was wondering if the water could boil, turn to steam, then condense back when it reaches the expansion tank if it doesn't go via the pressure sensor. And I wonder how fast the coolant level would go down if coolant was being lost via steam. Thoughts?
Dan
'91 928GT S/C
475hp/460lb.ft
Dan
'91 928GT S/C
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#20
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Whoa, whoa, whoa. I flunked phyisics (can't even spell it right) and a lot of other stuff a LONG time ago! So what you're saying is delete the sensor? I really do not understand, so please do not flame. If the sensor does not work why is it there and what COULD happen if its not? It's kinda like Porken's tensioner (which I have) No loose TB message means I'm SOL if something is going wrong and that kinda concerns me. Is there a serious jepordy by not having something to tell you that you're overheating too or am I reading this thread wrong? Just askin'.
#21
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Whoa, whoa, whoa. I flunked phyisics (can't even spell it right) and a lot of other stuff a LONG time ago! So what you're saying is delete the sensor? I really do not understand so please do not flame. If the sensor does not work why is it there and what COULD happen if its not? It's kinda like Porken's tensioner (which I have) No TB message means I'm SOL if somethings going wrong and that kinda concerns me. Is there a serious jepordy by not having something to tell you that you're overheating or am I reading this wrong? Just askin'.
Dan
'91 928GT S/C
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#22
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Ideal Gas Law: PV=NrT
P= pressure
V= volume
N= # of moles (molecules)
r= constant
T= temperature
Pretty sure that's right. I learned it in 7th grade IIRC (but that was about 30 years ago)
P= pressure
V= volume
N= # of moles (molecules)
r= constant
T= temperature
Pretty sure that's right. I learned it in 7th grade IIRC (but that was about 30 years ago)
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#23
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I've never heard of someing getting a "coolant" warning becasue of this sensor. This particular sensor is there to tell you the system is over pressurized (basically that your expansion tank cap has failed.) And after seeing Camoinc's litterally explode, I say get rid of it.
#24
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Dan
'91 928GT S/C
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#26
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#28
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I don't get this either - cutting the wires isn't going to make the engine run cooler. It could eliminate getting false warnings, but who gets overheating warnings when you're not over-heating?
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#30
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Here is the simple of it.
If that sensor goes, and it causes loss of pressure, your system will overheat.
Pull the sensor out of the loop and put in a barb. Keep the senor connector open, there is no issue.
If that sensor goes, and it causes loss of pressure, your system will overheat.
Pull the sensor out of the loop and put in a barb. Keep the senor connector open, there is no issue.