Help wiring a pull fan

[kas13]

So I hope you guys dont get tired of me asking questions, lords knows I have alot. As of now I am trying to install this pull fan I got at the junkyard with the Hayden 3653 thermostatic fan control. The instructions that came along with it are horrible (imo) and I couldnt find much help on the web either. 

Okay so I got two wires from the fan (black and blue) it said the black is positive so I obviously ground the blue. From there it says to wire the positive to the letter C on the thermostat. Somewhere on the web I read that the letter C is the ground so that doesnt make sense to me to run a positive to a ground? 

From there I run a wire from the #2 to a 20 amp fuse (which I got) and it says that goes to the ignition side of the switch, so will any 12v source work for this?

Lastly from the 20 amp fuse it says I can run a wire to a switch. (which I want to be able to turn off and on manually) but the switch I got has 2 male pins (i think thats the right name) coming from it so how do I know which one is the positive and the negative or does it not matter on the switch?

Any help with this is greatly appreciated, I think that should be all to it? I hope

 

[Seabronc]

My first question is, what did you get the fan off?  What engine did the donor have?  To be a real help on a 351W it needs to have a rating of.. . 3500 to 4500 CFM.  Take a look at these pictures with diagrams http://www.supermotors.net/registry/212/30394 .  In order to do that you will need to also install a 3G alternator http://www.supermotors.net/registry/212/30400 .

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[kas13]

Hi, thanks for replying and sorry if I posted this in the wrong section. I got it off a GM truck, it was a pretty big sized one. I don't see anything on the fan about the CFM either. I already have a pretty decent fan installed as the one in the pictures. I was under the impression that I could add another fan to the other side of my radiator to help pull air through and that it would turn on at reaching a certain temperature or by switch. Is that not possible with the kit and fan I purchased?

 

[Seabronc]

I wouldn't recommend a fan in front.  If you are having cooling problems, it is probably because you have some other issue to solve.  The fan in my pictures is a 4200 CFM fan off a lincoln Continental with a 4.6L engine.  It also has a radiator for a truck with A/C, no A/C in the truck.  A fan in front and behind the radiator could actually cause you air flow problems. 

Is the fan you have on the truck controlled by a temperature probe?  If so, then In Washington State it should not be comming on much unless you are moving slow or stopped at a light.  Mine only came on, even on the hottest days unless the truck was moving below 35 mph, in the Winter it never came on unless the truck sat ideling for an extended length of time. 

So, in my opinion don't install the second fan and fix the real issue, that is if there is one.

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[Seabronc]

I know I haven't answered any of your original questions, but I want to address the reason you are installing a second fan first

 

[kas13]

Well the reason I wanted to install a second fan is because I have uncoated headers that I suspected caused an early failure to my starter (which since I have protected it with a heat shield) and also causing me to get vapor lock (which i also bought some thermo tec wrap for the fuel lines up there) I also got a insulator base for my carb and some hi temp paint that I tried to spray my headers the best I could with them still on and I thought the 2nd fan might also help. I attached a pic of the fan that is already on there and it does cut on as soon as I start her up. It does a pretty good job blowing out into the engine, but those things get so dang hot I was just trying to find a way to keep it cool until I can afford purchasing some coated headers. Thanks for replying too

 

[Seabronc]

Well, that picture clears up some questions in my mind.  It's a standard mechanical fan .  I still don't think you should install a fan on the frnt of the radiator, for the reason stated above.  I'd get the headers wrapped.  The fan isn't designed to do that job, it's just for pulling air through the radiator and the schroud isn't designed to cool the headers. Just a note, don't remove the schroud or that will mess up the airflow through the radiator and causing engine overheating.

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[kas13]

Ok, yeah I don't want to take a chance and create a problem with my air flow. Guess I should have asked here first. I'm a little hesitant about wrapping my headers with them still on, doesn't look impossible but looks like it would be a little difficult getting that wrap around at certain spots. Are they still okay to wrap since I sprayed that hi-temp paint on them? Thanks again

 

[Seabronc]

The  wrap is insulation to decrease the heat they radiate into the engine compartment.