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Unread 04-25-2011, 06:38 AM   #166
vinceGC
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Hello,


i have a question.

can i use this Temp-switch
http://www.kfzteile.com/produkt/temp...ein/11965.html

to control the E-Fan (Taurus 3,8 2 Speed)

My Plan:

I would take the switch, with an Inline Hose Adapter,
to use the 87C = 188.6F to turn low speed (over an 40A Relais)
The 97C (206.6F) for full speed (over an Relais and a switch that turn off Low Speed)

If the A/C makes problems, and i am Towing my Caravan, i also planned to take a small Fan, that's placed in front of the Radiator, and turn on when the A/C is on. to increase the overheating.
Or does the E-Fan works so good that i can Tow my Caravan and use the A/C, without any problems?




So i need for that:
The Taurus 3,8l E-Fan
2 Relais (3 with the extra A/C Fan)
1 Switch to run only 1 Fan-Speed at one Time
The In-line Radiator Hose Adapter
The Temp-Switch MOdel :
a: http://www.kfzteile.com/produkt/temp...ein/11965.html
or
b: http://www.kfzteile.com/produkt/temp...ein/21832.html

is this possible?
Sorry for my bad English ;-)

greetings from good old Germany

vince

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Unread 04-25-2011, 06:36 PM   #167
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Vince, your English is just fine - welcome to the forum.

I'm not sure you will see much, if any improvement by running a pusher fan on the outside of the grille or radiator. I've been told that they can actually slow down the air a bit.

Your temp switch sounds like a promising idea though.
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Unread 04-26-2011, 06:46 AM   #168
YelloJeep
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Oh, and I got my relays out of a Cadillac at the junkyard. CHEAP and waterproof housings. (even came on a little 3 relay bracket..)
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Unread 04-26-2011, 08:40 AM   #169
HighLonesome
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Quote:
Originally Posted by vinceGC View Post
Hello,


i have a question.

can i use this Temp-switch
http://www.kfzteile.com/produkt/temp...ein/11965.html

to control the E-Fan (Taurus 3,8 2 Speed)

My Plan:

I would take the switch, with an Inline Hose Adapter,
to use the 87C = 188.6F to turn low speed (over an 40A Relais)
The 97C (206.6F) for full speed (over an Relais and a switch that turn off Low Speed)

If the A/C makes problems, and i am Towing my Caravan, i also planned to take a small Fan, that's placed in front of the Radiator, and turn on when the A/C is on. to increase the overheating.
Or does the E-Fan works so good that i can Tow my Caravan and use the A/C, without any problems?




So i need for that:
The Taurus 3,8l E-Fan
2 Relais (3 with the extra A/C Fan)
1 Switch to run only 1 Fan-Speed at one Time
The In-line Radiator Hose Adapter
The Temp-Switch MOdel :
a: http://www.kfzteile.com/produkt/temp...ein/11965.html
or
b: http://www.kfzteile.com/produkt/temp...ein/21832.html

is this possible?
Sorry for my bad English ;-)

greetings from good old Germany

vince
The Taurus fan will smoke a 40 amp relay on High, eventually.

If you turn on Low at 189*, the fan will always be on Low with a 195* stat.
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Unread 04-27-2011, 03:22 PM   #170
vinceGC
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Quote:
Originally Posted by HighLonesome View Post
The Taurus fan will smoke a 40 amp relay on High, eventually.

If you turn on Low at 189*, the fan will always be on Low with a 195* stat.

Hi,

so it will not overheat or go over 206F when it is running only on low with an 195F Thermostat?

Can i use the 92C/197,6F switch for the Full Speed for a better performance?

thanks
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Unread 04-27-2011, 03:47 PM   #171
HighLonesome
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It will go over 206* whenever you exceed the cooling capacity of the system. Doesn't matter what thermostat.

With the stock 195* stat, I would use the 197* switch for Low, and a 210-220* switch for High.

You don't want to overcool. They don't run right when you do. Everything is designed around 195*.
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Unread 05-10-2011, 01:24 AM   #172
rhovater
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Quote:
Originally Posted by YelloJeep View Post



These are the relays. Maybe $1 each at the junkyard. Wait until LKQ has one of the 50% off days.. Go get the fan and everything.
what year cadi????
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Unread 05-10-2011, 01:38 AM   #173
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ahhhhhhhhhhh...when I first started reading this tread I thought this was going to be an easy job....now not so much. I guess I need to return my ford relay now.
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Unread 05-10-2011, 07:08 AM   #174
YelloJeep
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Quote:
Originally Posted by rhovater View Post
what year cadi????
I'm not sure really, I think it was late '80s early '90'smaybe? I will tell you it was on the firewall, probably on the drivers side if I remember. It was in a bunch of them, just look around. I know at LKQ the cars are all together and you just walk and look. They have worked fine for me so far.

Do a "froogle" search for "25530731 relays" and it will tell you what all these relays came in.
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Unread 05-11-2011, 12:13 AM   #175
rhovater
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Quote:
Originally Posted by YelloJeep View Post
I'm not sure really, I think it was late '80s early '90'smaybe? I will tell you it was on the firewall, probably on the drivers side if I remember. It was in a bunch of them, just look around. I know at LKQ the cars are all together and you just walk and look. They have worked fine for me so far.

Do a "froogle" search for "25530731 relays" and it will tell you what all these relays came in.
thanks...so you run your high speed and low speed on them?
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Unread 05-11-2011, 08:44 AM   #176
YelloJeep
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Quote:
Originally Posted by rhovater View Post
thanks...so you run your high speed and low speed on them?
I wired it so the low would turn on (using one relay) with the temp switch, high would run (with the other relay) when I flip a switch to high, or off (water crossings) when switched off.

I couldn't put my hands on a 3 way switch so I just have the temp operated low and the off. I left it that way, never had any problems.

So in summary, I only use the low. Never had a problem with any of it. (The first temp switch I baught was bad, the only "new" part!)
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Unread 05-14-2011, 10:33 PM   #177
rhovater
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got it all hooked up.. some how the high and low is backwards..oh well it works though..lol
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Unread 05-16-2011, 06:34 AM   #178
YelloJeep
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Quote:
Originally Posted by rhovater View Post
got it all hooked up.. some how the high and low is backwards..oh well it works though..lol
Awesome,man.... I wasn't sure how well high would work for me, mostly because I was afraid it would pull too much power off my battery. Some folks on here say you have to upgrade your alternator. I didn't, but I just run low...

Anyway, I haven't had to mess with mine at all. Did you use the junkyard relays? And what kind of temp controller are you using?
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Unread 06-01-2011, 02:39 PM   #179
vinceGC
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Quote:
Originally Posted by HighLonesome View Post
It will go over 206* whenever you exceed the cooling capacity of the system. Doesn't matter what thermostat.

With the stock 195* stat, I would use the 197* switch for Low, and a 210-220* switch for High.

You don't want to overcool. They don't run right when you do. Everything is designed around 195*.
Hi again,

still waiting for my E-Fan (Overseacontainer to Germany)

i found this wiring Diagramm that is for the BMW E 30 double-temp-switch.
must use higher Amp-Relays,
Fuse? i think higher too

the problem now is:
wich Pin is for what, can i test in the kitchen? Hot Water on the Oven?

the Diagramm is incl. the A/C
look
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Unread 06-01-2011, 05:25 PM   #180
HighLonesome
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Hi Vince,

What efan are you getting?

I see a problem with that diagram if you will be using the Taurus fan. It is a 2-speed fan and you can't have power to the High and Low at the same time. That will burn the fan motor. Check this out

http://www.jeepforum.com/forum/f13/e...ematic-467329/

Notice the "Lo Disable Relay". It kills the power to the fan Low when the High thermoswitch engages. There is a chance that the "Dual Temperature Switch" in your diagram handles this. Actually I can see it doesn't. "Normal speed is run through a big resistor, limiting the fan operation. When the High engages, the fan gets battery power and the resistor is shunted.

So this diagram is for a single speed efan, not a 2 speed.

Yes I guess you could test in the kitchen with boiling water.

Andy
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