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Turbo/Turbo S (maybe even GTS) thermostats are not the typical looking reverse poppet design I've come to know an love (hate?) over the years. The "standard" design is pretty obvious - a hole opens up in the middle against the flow of water.
On the Turbo/Turbo S it seems to be a balanced sleeve (am I correct?), which allows pressurized coolant to circulate around all of its moving parts. Sounds great, but I don't understand how it restricts the flow. Upon 1st impression it would seem to me coolant can pass right through it unrestricted, regardless of the position of the internals. I do realize the water pump sits in front of the thermostat and that the inlet(s) coming from the engine and the outlet tubes exit out just over the water pump both are both behind the thermostat. This must have something to do with it but in my mind, having both inlet and the outlet on the other side of the thermostat means the water pump isn't doing anything but churning coolant. See diagram on page 89 of this parts diagram: https://www.porsche.com/all/media/pdf/originalparts/en/E_9PA1_KATALOG.pdf
Does somebody know how this all works? Your knowledge is appreciated!
When I went out to the garage this morning I saw a puddle in front of the left front wheel. I thought I had a bad radiator but when I got in and took a look it appears that the leak is coming at the connection between the breather tube and the radiator, check out the picture. So, my question is this; is this a bad radiator or a bad breather hose?
I'd like to turn on the radiator fans at about a temperature that's 10 degrees cooler than what they currently turn on at.
Is there a way to do that? Different temp switch? Reprogramming one of the computers? If reprogramming, can the Durametric Enthusiast do the job or is the Pro needed? Or some other available tool?
Durametric says I have a problem with the passenger side radiator fan. Using the Actions controls to turn on the radiator fans, the passenger side fan does not turn on in either low or high setting. Previously while replacing brake pads I removed the wheel well liner and inspected the radiator unit. The fan turns freely when manually pushed but does not turn under computer control. So the fan motor appears to have failed. Driver's side fan works fine.
The fan is mounted to the radiator as a unit and it appears impossible to remove just the fan without removing the whole unit, and given the tight space it appears necessary to disconnect the unit from the cooling hoses to do so. I was hoping to avoid this and replace just the fan. I have searched and there are numerous sources for replacing the whole unit but none (that I've found) that discuss whether the fan can somehow be removed and replaced by itself. Does anybody know if this can be done?
2005 Boxster, manual, no mods.