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Old May 3, 2007 | 09:51 AM
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DakinUK
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Default Electric Fan

Hi,
As you can tell from my log-in I live in the uk. Despite the warmer weather we seem to be getting over here, it still rarely gets above the high 80's in the summer. Bearing this in mind and the fact that I've no intention of doing any real off-roading (muddy campsite at worse!) do you think it would be safe to take the clutch driven fan off and rely on the electric one? I'll also be fitting a 180 stat. My electric fan comes on before the clutch fan engages and runs contiusly when I have the AC on. Is this normal operation?

Thanks for any help,

Paul
 
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Old May 4, 2007 | 01:32 PM
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Any ideas?

Someone said to re-wire the original electric fan to come on at around 180 instead of the 200 it normally kicks in at. How would you over ride the EMC that normally activates the fan?
There's 10-15HP waiting for the person with the right answers!

Paul
 
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Old May 4, 2007 | 01:39 PM
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imnothot02
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Default RE: Electric Fan

dont wire it thru the ecm...buy a theromostat and a relay... id have it come on at 170-175 personaly..
 
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Old May 5, 2007 | 07:47 AM
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Hi Travis,
Thanks for the responce. We are talking about the electric fan that's already fitted, not an after market conversion kit, right? Are you saying to disconect its feed from the ECM compleatly? I understand how to run a new feed via a thermostat, relay, etc but the fan also needs to come on when the AC is operating. Does it have a seperate feed from the AC? Finaly, I don't understand the temperature setting for the thermostate switch. If its set to 170 or even 180, won't the fan be running all the time if the coolant stat is opening at 180? I'm not saying you're wrong, I just don't understand the theory!

Thanks again,

Paul.
 
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Old May 6, 2007 | 06:51 AM
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Default RE: Electric Fan

Go buy an aftermarket setup, take it back the next day and keep the relay you need. Wire that bitch up!

OR you could be like me and never have a problem out of your Dodge by leaving it 100% stock. Cant guarentee anything if
the componets arent factory and built to last.

Just my 2 cents
 
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Old May 6, 2007 | 06:54 AM
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Default RE: Electric Fan

Tiaos!
 
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Old May 7, 2007 | 12:14 AM
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Why would you want to do this?
 
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Old May 7, 2007 | 12:24 AM
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Default RE: Electric Fan

More power cdn. I would get a flex-a-lite at least you aren't pulling much air through with that little stocker and if one little thing goes out of whack with your cooling system you could end up overheating very quickly.
 
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Old May 8, 2007 | 07:21 AM
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Sorry, but whats a flexy-light?

Thanks, Paul
 
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Old May 8, 2007 | 10:21 AM
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Default RE: Electric Fan

I believe you could certainly operate on the factory electric fan only in the colder 6 months of the year in the UK. It is my understanding that electric fan is primarily there to make sure the high side air conditioning pressures don't exceed safe levels.

Keep in mind that the viscous clutch on the 4.7 mechanical fan is supposed to be a special high slip unit that consumes almost no horsepower because it stays at a slow speed (400-500 rpm) even as the engine rpms go up and down.

Good luck.
I enjoyed my 18 month stay in Newcastle upon Tyne during which time many Brits helped me with restoring a Sunbeam Tiger.
 
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