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Fan switch for an electric fan mod #864200 01/27/08 06:24 AM
Joined: Mar 2007
Posts: 223
4xToy Offline OP
Wheeler
Just thought I'd throw this bit of info up. I did a few hours of research to come up with a fan switch that had a operating range that the 2.6 would be happy with. Most of the aftermarket switches are either 180* or 210*. I felt 180* was a bit cool for the 2.6 But 210 was too hot given the temerment of the heads on these things. Since the stat opens at 180* I feel a range of around 190* will be perfect.

On another note. The adjustable probe style fan switches control the fan by the temp of the radiator with air blowing passed it. IMO that is not a very accurate way to cool the engine. Therfore only a switch with direct coolant contact at the engine location makes since to me. Also in case of a t-stat failure, the fan will still come on and do it's best to keep the engine cool, just like a clutch fan would.

The answer was a $40+ painless wiring switch or a $22 fan switch from a '73-91 Honda (GP Sorensen P/N). It's operating range is: closes @ 189*, opens @ 181*. I figure even in the hottest days of summer the engine should never get above 195*. It fits perfect just in the front most hole in the lower intake. If you have a Temp guage, I don't think this location will work though because it is already being used.
[Linked Image]

I also snapped a pic of how good the Ford Taurus fan fits the trucks radiator. I'm only going to have to fab two mounting tabs for the passenger side of the shroud. I grabbed the stock circuit breakers from the fan too, so I don't need to install fuses that can unknowingly fail.
[Linked Image]


-Chad

Re: Fan switch for an electric fan mod [Re: 4xToy] #864201 01/27/08 11:55 PM
Joined: Apr 2003
Posts: 898
litnin Offline
Rock Warrior
[quote]It fits perfect just in the front most hole in the lower intake. If you have a Temp guage, I don't think this location will work though because it is already being used.
[Linked Image]


To fit it in with an existing temp gauge, all you need is a
T-fitting that will screw in to the existing hole.
Then put your switch in on one side and the temp gauge on the other.


1995 Trooper LS auto 3.2 DOHC /w SOHC intake
1989 Trooper 2.6 auto
1989 I-Mark RS DOHC 1.6
1991 Stylus XS DOHC 1.8
Re: Fan switch for an electric fan mod [Re: litnin] #864202 01/28/08 12:35 PM
Joined: Mar 2007
Posts: 223
4xToy Offline OP
Wheeler
It would have to be a pretty wide 't' to accomidate the probe on the ends of the sensors. And don't thnk there is room for that.

There is also a plug on the drivers side of the block down low that you could add a sensor to but the dia. is too small for the switch I bought


-Chad








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