Need single fan full time diagram - JeepForum.com
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post #1 of 14 Old 09-19-2021, 05:07 AM Thread Starter
agear
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1984 CJ7 
 
Join Date: May 2011
Location: norfolk
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I need a schematic for a third
electric fan because my dual fans aren't cutting it. I'll have to have it *my condenser fan) on . One thing I don't know about is right now my a.c. is wired to my fans with trinary or binary switch (not sure which) and to the ac itself. So im not sure if ac needs electric fan to work . It should not in my opinion. Better yet can I wire it to my dual fans dual fans' relay to come on when they do ? Because I can set them up with my sniper efi to come on at certain temp.. right now I have 2 fans going to sniper out put. I should be able to go to 2 to one wire on my sniper out put.

Update this is how I have my fans set up as well as my sniper ac kick

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1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #2 of 14 Old 09-19-2021, 09:22 AM
pedal2themetai
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?? What?? Your AC should NOT be hooked up to your fans. Your AC clutch should be hooked up to 12 V power and is turned off/on by the switch on the controller.. and the compressor is run off the motor belt driven.. All condensers are cooled off by the motor fans? a third fan would just block air flow making it worse...

what are you using for fans? do you have a shroud installed?

what is the actual problem? AC not coming on or not blowing cold air. motor over heating?

More information please.

good luck
tim
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post #3 of 14 Old 09-19-2021, 09:28 AM Thread Starter
agear
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Quote:
Originally Posted by pedal2themetai View Post
?? What?? Your AC should NOT be hooked up to your fans. Your AC clutch should be hooked up to 12 V power.. and the compressor is run off the motor belt driven.. All condensers are cooled off by the motor fans? a third fan would just block air flow making it worse...

what are you using for fans? do you have a shroud installed?

what is the actual problem? AC not coming on or not blowing cold air. motor over heating?

More information please.

good luck
tim
Naw I'm sure my fan set up is fine. I have 3 electric fans and thats all. The problem im having and the thing id like to change is need my 3rd fan to come on with my dual fans because my dual fans by themselves aren't cooling the engine enough but having the 3rd fan come on with the dual fans would cool the engine. My temp got up to 220 idling this morning in the p.l. if the grocery store but if I were to have my 3rd fan come oneen fine. without my ac the engine temp would have b

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #4 of 14 Old 09-19-2021, 09:35 AM
bob4703
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220* while idling isn't hot. That's good.
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-----

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post #5 of 14 Old 09-19-2021, 09:51 AM Thread Starter
agear
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Google says 195- 220 no more than 230. Mine was still climbing. And what about driving on the beach 4wheeling. I d like to keep my temp around 200

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #6 of 14 Old 09-19-2021, 10:31 AM
OrangeCJ-5
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What e-fans are you using. It sounds like you donít have enough cfm and yes they should turn on when the a/c is on. I donít think adding a third fan in front as a pusher is the answer.
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post #7 of 14 Old 09-19-2021, 11:04 AM Thread Starter
agear
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N.m. I plan on just tapping in the power and ground from my 3rd fan to my power and ground of my dual fans

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #8 of 14 Old 09-19-2021, 11:43 AM Thread Starter
agear
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Okay, they work . Come on at set temperature on sniper efi and come on regardless if I turn the ac on .got all 3 running. My mechanic told me what to do

Update so far so good.
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1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #9 of 14 Old 09-19-2021, 04:13 PM
JEEPFELLER
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agear

My pics are about 3 years old.

This is a 258 out of a 1976 AMC Hornet 100% rebuilt in 1996---driven daily.

This 18 inch fan was cooling my radiator too much, My heater lacked (in my opinion it still does and could be somehow improved) See this thread https://www.jeepforum.com/forum/f8/warmth-4412333/

Regardless I have dropped to 16 inch fan, which helped, but I am still seeking better heater core heat.

Notice there is no shroud.

This is a flex fan---so is the replacement.

I run a 195 degree thermostat.

It maintains + or - 5-7 degrees above or below the 195

My radiator is not real old, I bought it in 2000 with a lifetime warranty.

I run a 70/30 mix in it.

I have quite a few electrical things in Mr. Jeep---Adding more fans would most likely have the power company start charging me.

OK, I'm down to the moral of the story.

Why is my buddy working just perfectly with the mostly bullet proof OEM type set up?

and

Yours requires the Jeep be constantly submerged in unreliable/ constantly maintained dry ice?????

-----JEEPFELLER
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post #10 of 14 Old 09-20-2021, 01:03 AM Thread Starter
agear
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The dual fans are just 2500 cfm total but I think helped take the heat off the condenser so helping my ac vent temp. And I get to take advantage of my sniper efi capability. Electric fan reliability is fine. Sucks the flexslite fans are only 2500 cfm total -if they more I'd do away with the fan in front of my condenser.

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #11 of 14 Old 09-20-2021, 08:49 AM
bob4703
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I recently checked the TSM for our 74 and it said that instead of the 195* thermostat I'm using I should be using a 205* thermostat that doesn't completely open until 228*. The 304 V8 requires a 195* thermostat which doesn't completely open until 218*. It is going to run hotter when it is idling because the only source of cooling is the fan(s.) I used an E fan for several years. I was in the mountains one day and noticed the temperature was creeping up while I was waiting my turn at a road construction site. It went back down when I started rolling again. Even when driving through several small towns it stayed at 220* as it did back out on the highway at 60 MPH. When I got back home I found a broken power wire to the fan. I modified a 15" nylon flex fan and use the E fan as a never used toggle switched back up. I drove it for several months without a fan at all and just avoided heavy traffic and idling situations. The more electric chit you put in front of or behind the radiator the less natural cooling you are going to have.

-----

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post #12 of 14 Old 09-20-2021, 09:58 AM Thread Starter
agear
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Location: norfolk
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I need the fan in front of my condenser to get vent temps low. I may have to upgrade to better higher flowing electric vans

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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post #13 of 14 Old 09-20-2021, 11:11 AM
Fourtrail
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Quote:
Originally Posted by agear View Post
I need the fan in front of my condenser to get vent temps low. I may have to upgrade to better higher flowing electric vans



I really want to play with the new Spal brushless fans and the control options.


How is your condenser fan mounted in relation to the shroud for the two puller fans? You may need to put flaps in the puller fan shroud for the pusher fan to blow through so the air can flow correctly.




80 CJ-5, 74 CJ-6, 56 CJ-5
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post #14 of 14 Old 09-20-2021, 01:25 PM Thread Starter
agear
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My condenser fan is right against the grille on the inside. In front of the condenser , which itself is in front of the radiator. . My dual flexalite fans came in a shroud as 1 piece . I just mounted on the brackets and put it in.

https://www.jegs.com/i/Flex-A-Lite/400/116461/10002/-1

1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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