3B fan Clutch

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Joined
Apr 3, 2004
Threads
103
Messages
614
What is the name of of the 3B radiator fan clutch in the part manual I have one but cannot seem to find the clutch.

I know that the fan is the same as the one on a 22R and 2F, is the clutch the same also?

Thanks Myrle
 
mallred said:
What is the name of of the 3B radiator fan clutch in the part manual I have one but cannot seem to find the clutch.

I know that the fan is the same as the one on a 22R and 2F, is the clutch the same also?

Thanks Myrle

I think it is called a fluid coupling assembly. part number 16210-56040.
hth
j
 
Jan-78FJ40 said:
I think it is called a fluid coupling assembly. part number 16210-56040.
hth
j


Part # is good but it is showing discontinued here in the states, Cdan seems to think it is no longer availble, Wasn't someone here rebuilding them IIRC?

Thansk Myrle
 
mallred said:
Part # is good but it is showing discontinued here in the states, Cdan seems to think it is no longer availble, Wasn't someone here rebuilding them IIRC?

Thansk Myrle


The fan is NOT the same as 2F fan maybe same diameter but clutch on 2F is larger than on 3B. Do you require a clutch fan? Reason I ask is I sell solid fan replacements if you are interested, I disasseble clutch fan modify it and weld it so it is no longer a clutch fan. PM me if you are interested.

You can also buy fluid and replace the fluid in your clutch and that should also fix it, you should also get new O ring once you remove the old one it will usually not fit correctly again.

Cheers,

Michael
 
tlcruiserman said:
The fan is NOT the same as 2F fan maybe same diameter but clutch on 2F is larger than on 3B. Do you require a clutch fan? Reason I ask is I sell solid fan replacements if you are interested, I disasseble clutch fan modify it and weld it so it is no longer a clutch fan. PM me if you are interested.

You can also buy fluid and replace the fluid in your clutch and that should also fix it, you should also get new O ring once you remove the old one it will usually not fit correctly again.

Cheers,

Michael


When I started seraching local for parts I mentioned rebuilding it and the only parts store in town thought I was crazy as they had never heard of it.

Thanks guys, I have printed and will show them in the morning.

Myrle
 
crushers said:
does it just need the fluid?

I think so it is solid with no slop, just will not firm up with temps.

Myrle
 
if i am reading this right then the fan is "firm" i.e. solid, you can not turn by hand the fan part...
if you can turn the fan easily by hand then you need the fluid to make the turn when required...
can you let me know which one of above it is?
 
crushers said:
if i am reading this right then the fan is "firm" i.e. solid, you can not turn by hand the fan part...
if you can turn the fan easily by hand then you need the fluid to make the turn when required...
can you let me know which one of above it is?

The fan does turn about the same warm and cold, by firm I was meaning that there is no slop in the fan it does not wiggle front to back at all but I can stop the fan very easly by hand when at ideal and up past halfway on the guage. It had been running in the lower quarter up intil this last heat wave. It is now running back where it was since it tied the fan to the clutch with some nylon string.

Fluid should be here tommorow, Thanks guys.
 
try rebuilding it with new fluid...sounds like it is empty. Did mine last year...3 tubes of fluid from the dealer was $21.00 CDN !!! she works quite nice now.
Daryl
 
I rebuilt mine, it's not hard. I doubt I would do it again though. I have a hard time believing that the part is discontinued....

Also there are different viscosities of oem oil.

Call ENS and see if they have one.
 
I replaced mine thinking the problem is the fan clutch, but the prtoblem happened to be the radiator. I ordered on from Hilltop Toyota (20%) discount.since it wasn't available in US. Let me know if you need thir phone number.

Alex
 
What kind of fluid do you run in the coupler?
The fan on my 12HT dosen't seem to engage. Has anyone seen a 24 volt electric rad fan? Would I gain more power by going to an electric?

Thanks
 
FJota said:
What kind of fluid do you run in the coupler?
The fan on my 12HT dosen't seem to engage. Has anyone seen a 24 volt electric rad fan? Would I gain more power by going to an electric?

Thanks

Its some kind of silicon but thinner than the sealant stuff in the tube.
Most of them engage at about 30-40klm

There are 24v fans but I would keep what you got.

What you save on direct power will be sapped by more resistance in the alternator.
No such thing as a free lunch;)
 
crushers said:
or say screw it and run fixed...

I am going to change the fluid , but if you were going to go fixed I guess any good aftermarked would work, since turbo is on the shelf for this one and should be on in about a week.
 
mallred said:
I am going to change the fluid , but if you were going to go fixed I guess any good aftermarked would work, since turbo is on the shelf for this one and should be on in about a week.

Aftermarket fixed fan is somewhat of a pain, you have to match it to the pump, and make sure the blades are the correct diameter to fit inside the shrowd. I have learned this in the past and decided to turn the clutch fan into a fix fan. If you are intrested I offer fixed fan clutch replacements, so everything stays the same, water pump, plastic fan, just a new clutch part that looks the same but is solid with no free spinning. here is my old website with details if you are interested. I sell about 2 of these a month.

http://westcoastcruisers.org/WCCproducts.html

As I said this is old website so if you are interested send email to tlcruiserman@westcoastcruisers.com

Cheers,

Michael
 
Speaking of Clutch fans, in particular on the 3B, here is what happened to me a few weeks ago.

I had just finished some minor repairs on my 86 BJ70 (AXT Trubo, lift with 33" tires, and stock 3.7 gears) I was driving home from my shop, and coming down a large grade (low EGT's low temps, etc) I stopped at a shop and and left the engine running, when I got back in a minute or so later I noticed the temp had jumped from 185f to 200f, I started driving and it jumped up to 2.05f, and then went back down to about 195f, thought maybe a fan clutch problem, but not that big of a deal (original fan clutch, my only 3b left with a fan clutch). Took the truck back out to shop the next weekend, and when I hit the large grade going up the temp consistantly went up, even when I nursed it up the hill with hardly any boost and low egts, it just kept going up, it settled at 210f and would not go much below that, so lets say for the next 20 minutes of driving no matter what I did it would fluctuate between 205 - 220f, once I got to shop I cooled down the engine and proceded to change the clutch fan with one of my solid clutch fans. after that all was well runs between 180 and 190 again. I guess I mention the story because the clutch fan can go, in an instant and when it does, there is more involved that just getting some airflow through the front of the Cruiser, it can act very strange, I felt pretty helpless.

What I notice that is probably very consistant with a 3B clutch fan going, is the temperature will steadily climb over time, and the engine can not recover very well from those temp jumps. I think the only thing that makes it worse, is if you get to a point when you blowing radiator fluid out fo the overflow, you problems just get worse if that happens.

I can tell you that with all the temps that I encountered with this, the head was safe and no cracks (I think this is one of th newer hi nickel heads).

Cheers,

Michael
 
wesintl said:
I rebuilt mine, it's not hard. I doubt I would do it again though. I have a hard time believing that the part is discontinued....

Also there are different viscosities of oem oil.

Call ENS and see if they have one.

I can get brand new 3B clutches, they are not from toyota but a third party company that makes most of the replacement clutch fans for OZ. The price of these has been going up, because the demand and inventory is going down. I have not bought and stocked these because I do not see much depend for 3B clutch fans, however if there is a moderate interest I will stocks some. I will post what I could sell them for, in another post.

Cheers,

Michael
 
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