Thanks for the clarification Mean Green....as soon as I read your reply it hit me....duh, the Mark VIII (or other fans) are two speed...hence my thought that I was over engineering this upgrade...makes total sense now. Well, Im off to the junk yard to find a catch tank and washer tank to use...

 

You may not have to get the overflow and washer fluid reservoir, Wait for me to get to work on this thing and I'll let you know if I can use the OEM fan shroud. If my wife didn't take the camera I will take lots of pics.

 

Does anyone know which wire in the ignition is supposed to be tapped into? Is it the red one ar one of the many other colors???

I am just about done I just need to make some brackets and wire the ignition into the controller but I ran out of sunlight. [:@]

 

My son is sick so I have to finish up after mopm gets home. [&:]

 

I'd just like to find a junk yard local that has the fan. I've called everyone in the area...

Looks like I'm EBAY'n it!

 

Well I ran into another issue with the fan, I can't get it to shut off. I plugged the battery in and it kicked on immediately so I thought I had plugged into a constant source in the ignition. I pulled the wire from that source and left it unhooked so I could use my underhood light and the thing kicked on again even though the switch wire wasn't plugged in to anything. Does anyone have any idea what the problem could be??? I am stuck pulling the - cable after I shut off the D at this point until I get a day off next week. Oh and BTW it didn't go over 195 idling but we'll see tomorrow when it warms up a little bit how it really performs.

 

Mean, If I recall I heard it will run non stop unless you buy a fan controller for it. I think Jegs had 3 from $40 to $120. The $40 kit looks like all we would need.

http://www.jegs.com/webapp/wcs/store...fan+controller

 

Is it OK to have a temp probe in the radiator fins for the control?

 

You can purchase a fan control unitthat will cycle on and off by means of a temp probe included with the unit and the unit can be connected to the original ac efan switch to cycle on and off the high speed automaticly when the ac is turned on, it also allows the user to wire a manual override switch to cycle the fan on and off at will, the switch however is not included. I saw this fan control unit the other day at an aftermarket website that I shop from frequently. Perma-Cool makes it, just get the dual fan control set-up and wire the speeds as seperate fans.

 

I do have a fan controller. I was thinking (and have been told a couple times) that it might be wired incorrectly form the factory. I'll be going down to Auto Zone to see about a replacement since it is faulty but not fried.
Oh and cesspool that's what I did and no leaks. Just be gentle with it and you'll be fine.