My car is fitted with a Coolcat fan and sensor, the ON fan temperature is just above 70 degrees C mark on the gauge, and the OFF fan temperature is just below the 70 degrees mark on the gauge.
I checked it with a calibrated gauge and probe and the car readings are correct : 73 and 68 degrees.
My question is: The fan seems to run all the time. As the normal running temp of the motor is 70-75 degrees, do other cars with the Coolcat fan do the same, or is it just that the temp sensor is not good ?
2nd question : I am running the fan with the factory shroud, and set up the blades nearly flush with the edge of the shroud, am I correct or not.
Any input from you guys would be greatly appreciated.
Thanks in advance.
Thierry
Coolcat fan operating temperatures
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Topic author - Posts: 146
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#1 Coolcat fan operating temperatures
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I want to die peacefully in my sleep, like my grandfather,not screaming and terrified like his passengers.
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#2 Re: Coolcat fan operating temperatures
Echezeaux wrote:My car is fitted with a Coolcat fan and sensor, the ON fan temperature is just above 70 degrees C mark on the gauge, and the OFF fan temperature is just below the 70 degrees mark on the gauge.
I checked it with a calibrated gauge and probe and the car readings are correct : 73 and 68 degrees.
My question is: The fan seems to run all the time. As the normal running temp of the motor is 70-75 degrees, do other cars with the Coolcat fan do the same, or is it just that the temp sensor is not good ?
2nd question : I am running the fan with the factory shroud, and set up the blades nearly flush with the edge of the shroud, am I correct or not.
Any input from you guys would be greatly appreciated.
Thanks in advance.
Thierry
Thierry, my Coolcat also seems to run a lot (I'd pose the question to Mike Frank if I were you) I'm not too concerned at this point as there is no issue. You need the fan as close to the radiator as you can get it without fouling. Also make sure it is sucking and not blowing.
I would fit a shroud as it will help cooling by ensuring the air is channelled through the radiator (also a safety issue).
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#3
If you have the shroud fitted, the CoolCat fan should sit close to the shroud's exit. If the fan is too close to the radiator, the shroud may cause a slight pressure rise behind the fan, reducing its effectiveness.
I learned this years ago, when I had a fan strapped to the radiator. With the shroud installed the engine ran noticeably hotter, so I just removed the shroud. My current car has the CoolCat fan installed along with the shroud, and runs cool even in summer--and this is with a stock 4.2 radiator.
The thermal switch Mike sells is an off-the-shelf item, so finding one with different parameters shouldn't be a problem.
I learned this years ago, when I had a fan strapped to the radiator. With the shroud installed the engine ran noticeably hotter, so I just removed the shroud. My current car has the CoolCat fan installed along with the shroud, and runs cool even in summer--and this is with a stock 4.2 radiator.
The thermal switch Mike sells is an off-the-shelf item, so finding one with different parameters shouldn't be a problem.
Mark (Moe) Shipley
Former owner '66FHC, #1E32208
Former owner '65FHC, #1E30036
Planning on getting E-Type No. 3 as soon as possible....
Former owner '66FHC, #1E32208
Former owner '65FHC, #1E30036
Planning on getting E-Type No. 3 as soon as possible....
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#4
Hi Thierry,
I do not have a coolcat, but when I fitted my own set up I had a 22mm tapped boss welded to the Header which takes the modern temperature switch fitted to most cars today. My car temperature runs around 72 Deg C so I purchased a switch with contacts that close at 84 Deg C (Fan On) and opens 78 deg C (Fan Off). This allows the fan to only operate in traffic jams etc. Once on the move the temp drops back to 72 Deg C the fan is off at 78 Deg C. These switchs are stocked at most auto car parts stores. I use a company called Panks Electrical in Norwich, UK
I do not have a coolcat, but when I fitted my own set up I had a 22mm tapped boss welded to the Header which takes the modern temperature switch fitted to most cars today. My car temperature runs around 72 Deg C so I purchased a switch with contacts that close at 84 Deg C (Fan On) and opens 78 deg C (Fan Off). This allows the fan to only operate in traffic jams etc. Once on the move the temp drops back to 72 Deg C the fan is off at 78 Deg C. These switchs are stocked at most auto car parts stores. I use a company called Panks Electrical in Norwich, UK
Kind Regards John
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Topic author - Posts: 146
- Joined: Thu Jan 01, 2009 1:04 am
- Location: Perth - Western Australia
#5
Thanks to you all, I think the replies are covering all possibilities !
I will look for another sensor with highter settings just to try.
Thanks again for your time.
Thierry
I will look for another sensor with highter settings just to try.
Thanks again for your time.
Thierry
3.8 RULES
I want to die peacefully in my sleep, like my grandfather,not screaming and terrified like his passengers.
I want to die peacefully in my sleep, like my grandfather,not screaming and terrified like his passengers.
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