how do you know if your viscus hub fan thing is broken?

Post by **robbie** » Mon May 12, 2003 8:59 pm

as the topic says, how do you know if the viscous hub is busted?

Post by **POS** » Mon May 12, 2003 9:00 pm

It stops working :lol:

Post by **robbie** » Mon May 12, 2003 9:01 pm

mine is working I think? but someone said to me that it will need changing..

the fan turns tho, no idea

Post by **Lil Menace** » Mon May 12, 2003 9:02 pm

Its not so viscous ? :lol:

Post by **robbie** » Mon May 12, 2003 9:04 pm

enough with the jokes.. pad somewhere else ..

back to the topic

Post by **POS** » Mon May 12, 2003 9:22 pm

I wasn't joking!

It will just stop working!

There usually not to many things that go wrong!

What did the person say to you when they said it will need changing and did that person stand to benifit finacially from you if you said Fix it!

Post by **RoldIT** » Mon May 12, 2003 9:26 pm

It either spins too easily or is seized.

It should have some definate resistance if you try and turn it by hand.

Make sure the engine is not running when you try though ... :finger:

Post by **Bitsamissin** » Mon May 12, 2003 9:49 pm

Yes Kris is right it will free spin and cause the engine to overheat probly coz all the oil has leaked out over time or it will sieze solid and spin with engine speed (happened to my mates Lux).
Mine actually decided to free spin halfway up a hill climb at Toolangi on a 35 degree day. Almost cooked the bugger used heaps of Selleys instant putty to bond the fan bearing to the shaft, it was enough to get me home.

Post by **POS** » Mon May 12, 2003 10:03 pm

Yeah i have only seen a couple spin freely!

The engine will be running and the fan is Just spinning, sometimes it doesn't spin at all!

If you can spin it easily like a couple of revolutions than it beggered.

It should spin but with a fair amount of resistance!

Post by **robbie** » Mon May 12, 2003 10:07 pm

for one, the person that told me to fix it wouldn't benifit financially.

and the story.. I had an overheating problem with my bundy. There was no shroud so in traffic, the thing would overheat

so I picked up a shroud today, fit it, and the farkin thing is still overheating..

cruising its ok, but in traffic it overheats

its got me buggered, and I want it fixed..

Post by **RoldIT** » Mon May 12, 2003 10:08 pm

Sounds like it's a free spinner ...

... or a head gasket :!:

Losing any water?

Post by **robbie** » Mon May 12, 2003 10:10 pm

losing no water..

and I think its not the head gasket cause when cruising, its fine..

only in traffic

umm, the fan can be moved by hand a bit..

it can also be stopped when the car is idling, is this normal?

Post by **POS** » Mon May 12, 2003 10:14 pm

Post by **big red** » Mon May 12, 2003 10:16 pm

try it when its overheating, stop and see if its spinning at the same speed as pulley when revs are high.
then shut down and see if its very hard to turn.

Post by **RoldIT** » Mon May 12, 2003 10:17 pm

Yep, she's a free spinner ...

... might do to replace the thermostat at the same time ... cheap insurance, just in case.

Post by **robbie** » Mon May 12, 2003 10:17 pm

well, I might have to change the thing then aye..

or should I just bolt a 16" thermo fan into the shroud and piss off engine fans?

Post by **big red** » Mon May 12, 2003 10:19 pm

bolt in a twin fan with shroud from a falcon.

Post by **robbie** » Mon May 12, 2003 10:20 pm

big red wrote:bolt in a twin fan with shroud from a falcon.

I had one today, doesn't fit cause of all the air con hoses and all that shit under the bonnet.

so thats why I got the shroud

Post by **big red** » Mon May 12, 2003 10:24 pm

try pulling it apart and buy some silicon stuff from toyota to refill it, comes in a 15 ml bottle i hear.

Post by **robbie** » Mon May 12, 2003 10:27 pm

whats the rough cost of refilling it?

and whats the rough cost of buying the whole new assembly?

read: rough

Post by **big red** » Mon May 12, 2003 10:42 pm

no idea on cost of either, wouldnt mind knowing though as i might try it in mine if the new bullbar mods with more airflow doesn't work.
shane

Post by **Punchy** » Tue May 13, 2003 12:35 am

when was the last time you had the radiator core checked and cleaned ?

Post by **robbie** » Tue May 13, 2003 11:35 am

it cant be bloked.

I get good cruising temperatures.

Post by **robbie** » Tue May 13, 2003 3:23 pm

this POS is starting to piss me off bad.

I could stop the viscus hub at 3,000rpm when the car was hot (with a cloth, and a small touch of force of course)

I then turned the car off, and the thing would free spin a lot when hot. more than it does when cold..

I'm starting to have doubts about this cooling system now.

Before I had the shroud on, it was getting nice temperatures cruising. Now with the shoud on, cruising the temp is higher than it was without one, and it still overheats on idle.

it has got me stuffed for ideas.. any ideas?

Post by **big red** » Tue May 13, 2003 8:09 pm

hub is stuffed :!:

Post by **robbie** » Tue May 13, 2003 8:48 pm

hub as in clutch fan?

Post by **Bitsamissin** » Tue May 13, 2003 8:53 pm

Robbie, when mine died I got a 2nd hand one from a wrecker $165 with the fan, so far so good (12 monhs +).
I did price new viscous clutches from like Repco, Autobahn etc (don't even bother going to the dealer) and a mate in the trade could get me one for around $140 which is superior to a stock one in that it locked up better.
Try Bundytime he maybe able to get you a trade price. Prices from Autbahn etc were around the $250 from memory.

Post by **robbie** » Tue May 13, 2003 9:00 pm

aye frank,

got a price of a viscous hub today.. $140 trade price

either that, or I bolt in a thermo fan to where the fan sits in the shroud..

dunno.. bundytime has done this, and fark me it works nicely

Post by **Juzza** » Wed May 14, 2003 6:58 am

Ok, heres my advice and the cheapest fix IMHO.
Firstly check wether or not the fan hup can be split, if so there will be a set of bolts (4) bolting the fan to the hub and another set of 4 bolting the two halves of the viscous coupling together. If it is like this the job is easy!
Go to Mister Toyota's spare parts shop and ask for part No 08816-10001.
This is Toyota silicone oil in a 15 ml tube. Get one tube to improve the fan, or get two if you want it basically locked all the time. Go home ,pull of the fan, mark it so u can reassemble properly,split the halves, squeeze the oil into one half, reassemble,(being careful with o-ring seal) and refit fan assembly to vehicle.

Tube of this goo will cost u roughly $10-$20.

Post by **Wendle** » Wed May 14, 2003 7:18 am

don't get the silicon oil within about 3.5km of anything that you EVER want to paint, lacquer, weld, glue, etc, etc.. :o

Outer Limits 4x4 Board

how do you know if your viscus hub fan thing is broken?

how do you know if your viscus hub fan thing is broken?

Who is online