Electric aux fans

[801FJ62]

Hello

In the summer heat, my 62 can often creep up into water temps that make me very uneasy. My thermostat is fine, my gauge seems to be okay. I'd like to be able to run the AC occasionally, so I think an auxiliary electric fan would be a good option. Any mud members have anything like this installed?

 

[snowbound1975]

Have you tried a coolant system flush? Might not be working to specs if it has a bunch of mineral deposits.

 

[Wile E Coyote]

Yup. Toy gave you a more than adequate cooling system from the factory. So, unless you've signifigantly modded the engine, I'd look at simple maintainance and repair as your solution.

 

[Elbert]

Yeah...some guys have installed a pusher fan in front of the condensor....same deal with some of the guys on the 80 section. If you have temp issues...you need to solve those first, becuase there might be an underlying issue. Good shroud, fan clutch, fan, thermostat...etc would be first to check...then make sure your coolant is in good shape and the radiator is not clogged or blocked.

 

[801FJ62]

What temperature should it be running at? I have a Stewart Warner gauge, and I usually run (no AC, easy city driving) around 190-195. Today it was in the low 90s in salt lake, and I was idling around 210.

In terms of the system, my fan and shroud look fine, I just had the clutch replaced about 6 months ago. It has all new coolant and a new water pump. I'm not certain about my radiator but I was told it was recently replaced (5 years or so). Should I look into a general radiator boil/cleaning?

 

[Wile E Coyote]

5 years is not 'recent' if there's been no PM in the interim. There have been generally poor reviews of aftermarket fan clutches, and even OEM clutches can be helped in temperate areas such as SLC. Folks here in AZ use higher viscosity oil in the fan clutch to improve cooling performance.

 

[Elbert]

What temperature should it be running at? I have a Stewart Warner gauge, and I usually run (no AC, easy city driving) around 190-195. Today it was in the low 90s in salt lake, and I was idling around 210.

In terms of the system, my fan and shroud look fine, I just had the clutch replaced about 6 months ago. It has all new coolant and a new water pump. I'm not certain about my radiator but I was told it was recently replaced (5 years or so). Should I look into a general radiator boil/cleaning?

When its hot (above 90F) my experience with my 60 when it was stock was that it would run somewhere around 190-195F just messing around without the a/c. With A/c on around 200F to 210F. I don't ever recall the truck getting hotter than 215F or so. I could clearly hear the fan clutch engage when starting off from a dead stop and running up through the gears in town.

With A/C running it would be "normal" to be running 200F-210F...

I'm not sure you have an issue really.

As I recall the thermostat is something like 192F or so. So for one, the truck should basically always run about that temp. Add a/c to the mix and its going to get a little hotter. If you don't see north of 215 with the a/c on and the ambent temp is dancing in teh 90's then I think its a normal condition.

Link is to a thread in the 80 section but similar mods made to all kinds of vehicles. A pusher fan will certainly help with getting the a/c to work well.

https://forum.ih8mud.com/80-series-tech/160331-jdm-aux-fan-install-doesnt-get-easier.html

 

[Benjaman]

210*f is fine. The thermostat in my 62 is oem Toyota and it starts to open at 190* and is fully open at 212*. That spec is from a toyota parts spec book.

I run an electric fan because it's the smart thing to do. It only comes on in traffic and stays off at cruising speed, giving me a touch more HP. Cruising at 63 mph(via GPS) on flat ground, my rig gets a hair over 19 mpg. I've checked it on a dozen trips.

Proform 67015 Proform Mustang 5.0L Electric Fan With Thermostat

What temperature should it be running at? I have a Stewart Warner gauge, and I usually run (no AC, easy city driving) around 190-195. Today it was in the low 90s in salt lake, and I was idling around 210.

In terms of the system, my fan and shroud look fine, I just had the clutch replaced about 6 months ago. It has all new coolant and a new water pump. I'm not certain about my radiator but I was told it was recently replaced (5 years or so). Should I look into a general radiator boil/cleaning?

 

[rat]

I wouldn't be happy with a 3F motor running at 200+. I put an oil cooler (off a Hyundai truck) on mine to keep it at 190. I tried a small pusher fan first, to help when wheeling, but it didn't help - think maybe the pusher obstructs air flow

 

[801FJ62]

210*f is fine. The thermostat in my 62 is oem Toyota and it starts to open at 190* and is fully open at 212*. That spec is from a toyota parts spec book.

I run an electric fan because it's the smart thing to do. It only comes on in traffic...

How difficult of an installation was that? It looks good and I like the idea of the extra MPG possibility. How reliable is it? That really my only concern, don't want to be stranded without any way to cool the coolant in the middle of nowhere...

 

[Benjaman]

How difficult of an installation was that? It looks good and I like the idea of the extra MPG possibility. How reliable is it? That really my only concern, don't want to be stranded without any way to cool the coolant in the middle of nowhere...

Install is a .

Reliable? In my 19 years driving my 85 Toyota 4x4 PU. I had 3 fan clutch's go bad, as in lost all fluid, as in fan not turning. The last time it happened was 12 years ago. I replaced it with the electric fan in the above link. When I junked the PU, and got the 62, I transferred the fan over. So I've got 12 years on this fan. One time the controller got a cold solder joint, and stopped working. I was in Nevada summer heat, and noticed the temp @ 250*, I pulled over, ran a hot lead from the battery+ to the fan, and ran the truck 4 more hours back to town. The next day I replaced the controller with a new one for about $30.

So for me, I would take a good Electric over a clutch any day.

If you buy the E Fan, you will need a couple of 2x2 angles about 1 foot long each. You'll also need a few feet of all thread(cant remember the size.

Or you can buy a Flex a lite (same fan) for $275., and that will come with everything.

ToyotaOffRoad.com - E-Fan Review

 

[Elbert]

you better do some reading and make sure you are comparing apples to apples before you jump off on an electric fan setup as the sole source of cooling on the 60. Do you run A/c do you drive off road, etc...

 

[cruiserfj45]

Electric is all good until you loose your alt on the trail. If your fan clutch looses its fluid keep a hose clamp large enough to tighten down where it slips and instant solid fan to get you where you need. My dad ran that on our FJ40 for a entire summer with no problems.

 

[T-bones 60]

My original fan clutch lasted 27 years and 250K miles. I personaly feel better knowing my fan is powered by a 6cyl engine vs. an electric moter. These trucks were designed to run in desserts in the middle east and down under. IMO I feel best knowing master Yota designed my cooling system

 

[rat]

These trucks were designed to run in desserts in the middle east and down under.

I'm no expert on the design history of our beloved LC's, but I have to question this, cos my FJ 75 came with its air intake opening right over the radiator - not ideal for a hot climate?

 

[T-bones 60]

I'm no expert on the design history of our beloved LC's, but I have to question this, cos my FJ 75 came with its air intake opening right over the radiator - not ideal for a hot climate?

Unfortunatly we didn't get those uber cool rigs here in the States so I am not in the know on the 75's. But I would guess they put the air intake high for water crossings and less dust. The temp of the air being sucked into the engine should have nothing to do with how hot the engine will run. It can effect power output but it's doubtfull one would notice much of a diffrence.

 

[HJ61 12HT]

. It can effect power output but it's doubtfull one would notice much of a diffrence.

There is quite a noticeable increase in power when you take a turbo diesel for drive on a freezing morning compared to a hot summers day, it's like having an intercooler fitted...

I'm guessing perhaps about an 8% increase in power in the cold vs 8% decrease in very hot air, so say a 16% difference in total, it is noticeable...

I've modified several 4wd (mostly petrol landrovers) to electric fans.
If the cooling system is in good shape then the fan is never needed unless crawling at low speed or sitting in traffic, or deep sand, huge hills etc...

The reason to go electric for me was for fuel efficiency, and to have a switch to stop fans operating when going through deep water crossings.

 

[T-bones 60]

There is quite a noticeable increase in power when you take a turbo diesel for drive on a freezing morning compared to a hot summers day, it's like having an intercooler fitted...

I'm guessing perhaps about an 8% increase in power in the cold vs 8% decrease in very hot air, so say a 16% difference in total, it is noticeable...

I've modified several 4wd (mostly petrol landrovers) to electric fans.
If the cooling system is in good shape then the fan is never needed unless crawling at low speed or sitting in traffic, or deep sand, huge hills etc...

The reason to go electric for me was for fuel efficiency, and to have a switch to stop fans operating when going through deep water crossings.

Wow, I had no idea that outdoor temp made such a diffrence on the turbo dielsels. I have never driven one (sadly) and I have the gasser 2F which is slow regardless of temp.

 

[801FJ62]

Alright, thanks for all the replies. Gonna get the radiator boiled out hopefully this week. My thermostat, clutch, fan, and shroud are all working very well. In terms of my driving, I've been using it pretty much as my DD recently, with some dusty roads and light wheeling here and there. Anything else I could do mud?