Hey guys, anybody have a part number for like an autozone or universal e-fan temp switch? I tried searching all the threads for the e-fan conversion, but no luck. Also my guys that werk at autozones around here are a little dull. They tell me they only carry vehicle specific.

Just lookin for about a 180 degree switch... and dont really wanna pay for the adjustable.

Let me know what you got, thanks

 

Go with the adjustable one, it's 25 bucks. Cheaping out on the cooling system will bite you in the *** down the road. 25 bucks--- ---rebuild, you weigh out the options.

 

I bought one of those adjustables and it failed early. I ended up hot wiring it in the paddock. My solution was to replace it and add a 3 way switch so I had 3 positions. Off (for working under the hood), auto (controlled by the t-stat), and on (bypassing it comepletely). I reccomend this setup to anyone with a stat on the fan. Like Scott said, you dont wanna lose an engine over a $25 part, or get stranded at the least.

 

OK...let me rephrase... I want the 180... I guess its not really an issue of cheaping out. I'm just fine with the pre-set

 

I'm not aware of any aftermarket pre-set temp switches. If there are, the switch will need some way in which to take an engine temperature reading. Your best bet might be to check Jegs or Summit.

 

ok, thanks T... I've only heard of the preset ones. Never seen one myself. May not exist. The ones I heard of are supposed to go in the coolant passage, porbably in a rad hose.

Oh well, I'll keep searching

 

Check SummitRacing.com.

- David

 

The other thing I'm thinking, particularly when you said the parts guy wanted and engine and model #, is that the temp sender probably interfaces with the ecu, which then tells the fan to turn on/off. Even the temp sender for the choke on our lowly 12As interfaces with the ecu, which then releases the magnet in the choke unit so it will retract.

 

I had good experience with the derale adjustable temp with auto and manual switch (well not quite, this is the wire for A/C where I had a toggle switch). Lasted over 3 years, it could have been longer except I broke it while I transfered the motor to another FB.

Im a cheap-*** so I settled for a regular toggle switch.

 

The one I've been using for a couple of years now was from Autozone, and it cost me 18 bucks. However, it is not easy to find. They keep it behind the parts counter, and you have to convince them that they have it before they will really look for it. The more expensive ones have an additional circuit to turn on the fan when the A/C is on, but since I don't have that I didn't want to pay the extra money for something I didn't need.

My only complaint about this fan control is that for the first few weeks you have to keep adjusting it so that it turns on at the right time. After that it seemed to "settle in" and has held steady ever since. Can't be beat for the price in my opinion, but if you have the money to blow I'm sure that there are higher quality versions out there.

 

If you go to the local Auto parts store. Get out a paper illustrated catalog. Find the diameter/pitch that goes into the bottom of the radiator. I believe it is 16X1.50, correct me if someone else knows differently. You can either remove the switch at the bottom or get anysize and take the radiator to a radiator shop and see if they can plumb it in for you. The switches in the catalog should offer the temp that they come on at and where they shut off.

 

I remember reading your post in the archives about an e-fan...

Do you remember the part number, or do you have anyway of finding it?If not, thats cool... I'll just make them look! lol

Which store did you go to for the paper catalog? In all the autozones i've been to, i dont think ive ever seen one

 

Autozone is not a parts store,lol. Go to the local Napa.

 

I'm not sure, but this might be the part I used. Unfortunately, they did not have a photo on their website so I can't be sure. But it sounds right, and the price matches. Have a look at one and you should be able to tell. It should have an oblong silver "pellet" that attaches to the radiator to sense the temp, with a wire leading to a small box with an adjustment **** on it, plus the needed wiring...

COMPRESSOR_WORKS Electric Fan Thermostat for a 1985 Mazda RX7

Unit Price: $17.99
Core Value*: $0.00
Part No.: 733653
Weight: 0.6 lbs.
Warranty:
Availability: Online: Ships within 2 business days
Store: Normally Stocked
Note:

Economic adjustable

This was taken from the Autozone website....

 

I haven't installed it yet, but I have a switch that I bought at NAPA. It's a single-wire temp switch from some GM product. I just looked for a switch that had a 3/8" NPT end and the temp rating that I wanted.

Then, I removed the choke temp switch from the abck of teh water pump housing and tapped it 3/8"NPT.

Only problem is, it *just* interferes with the Holley carb when the wiring pigtail is installed... so I may relocate the switch elsewhere on the housing, or maybe drill/tap a rotor housing.

 

Can you place the sensor in the radiator using one of the other sensor positions? I'm sure this type of sensor is more accurate than the "external" ones that come with most adjustable controllers, but I like to be able to adjust the setting for special occasions and such.

 

I thought about that, my only problem is that most stock sensors are made for dummy lights and only ground when the engine is already too hot.

Do you know the temperature on this switch?

 

It isn't an idiot light switch, it is a fan switch. Actually, it's designed to handle full fan current, but I would still route it through a relay for overkill's sake. It'd also be a good idea to have a second ground wire going to an in-car switch for those times you want the fan on all the time.

I think it was either 202f or 210f switchpoint. It was the lowest-rating switch, I remember that much.