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-   -   electric fan heat sensor (http://www.hotrodders.com/forum/electric-fan-heat-sensor-229224.html)

orlando295 02-05-2013 07:51 PM

electric fan heat sensor
 
hi i have a electric fan i need to install but not sure where a 3/8 port is on my 350 chevy motor too install the heat sensor also car has a blower on it if that makes a diffence please help pictures a big help
Thanks Orlando

orlando295 02-05-2013 09:47 PM

if it helps its a wieand intake man

delawarebill 02-06-2013 08:03 AM

sending unit
 
i'll assume u don't have a plug on the front of intake nx to the stat??? there is a plug on ea head in the middle of the 2 center plugs. u can use that. may not be the greatest place but its a place..

orlando295 02-06-2013 09:11 AM

Quote:

Originally Posted by delawarebill (Post 1643239)
i'll assume u don't have a plug on the front of intake nx to the stat??? there is a plug on ea head in the middle of the 2 center plugs. u can use that. may not be the greatest place but its a place..

i do have one on the front but my temperature gauge is hooked up there do think i can move temperature gauge to head area and then install heater sensor in front will my temperature gauge read right?

sedanbob 02-06-2013 09:18 AM

One option might be to put a bung in the bottom of the radiator (that's an option on most aluminum rads), but either use an adjustable thermostat or a lower temp, since the bottom of the radiator won't be as hot as the top of your intake.

orlando295 02-06-2013 09:27 AM

i have a tapping on intake man but my temp gauge is there now could i move that to the head and use the front one on intake for sensor and will my gauge read temp right on the head?

ogre 02-06-2013 01:19 PM

i have mine installed in my lower radiator hose foir the past 15,000 miles
a short piece of ss exhaust tubing and half a ss coupling.
don't forget to add a ground wire if you go this route.

my thoughts on installing it in the lower hose?
in the intake the fan will run anytime the motor is warm even if the thermostat is closed and the radiator is a frozen block of ice.
in the thermostat housing the fan will run every time the thermostat opens, even if the radiator is cold as ice.
lower hose the fan will run only after the radiator is warm and not doing it's job
i should put an led in my cab to see the cycle times, but it has worked fine for 3 years.
why fix it if i ain't broke :D

http://i306.photobucket.com/albums/n...r/IMG_1298.jpg

ogre 02-06-2013 01:20 PM

i really need to clean my engine bay :D

sedanbob 02-06-2013 02:34 PM

Quote:

Originally Posted by ogre (Post 1643337)
i really need to clean my engine bay :D

Don't we all? Good reminder about the ground wire. :thumbup:

delawarebill 02-06-2013 04:38 PM

temp probe
 
Quote:

Originally Posted by orlando295 (Post 1643261)
i do have one on the front but my temperature gauge is hooked up there do think i can move temperature gauge to head area and then install heater sensor in front will my temperature gauge read right?

yes u can.. the temp will be a little diff from the stat area to the head area. i had an old tunnel with no port for a temp probe and used the head area.. changed intake and went to the stat area. but bottom line is yes u can us it.. might consider using the lower hose fitting too.. that is a nice idea.. or cut the upper and install there too...


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