Outer Limits 4x4 Board

Has any one changed the silcone oil in the clutch fan coupling?and if so can i use any type of silicone oil as i can get a tube for a toyota coupling?
I have done a search with some guys saying they have done it,if some one has done it how do you go about doing it?

ps. I shouldnt be able to stop the fan from rotating when motor is running?
or when i do stop it if i increase revs it should be hard to hold is that right?
Gav

Hi Gav
You usually need to be able to split the fan hub to top up the fluid.
Not all hubs are servicable , some have a screw you can fill them through.
I believe the toyota fluid will do
A fair test is how long does the fan spin for when you turn off the hot motor, it should stop almost instantly, not free spin.
J Top

well it depends on if the car is hot aor cold when hot it takes a while to spind down but when cold its almost stops.My prob is that when the car is under load say going up the putty road which quite step my car gets hot say up to 3/4 on temp gauge and im struggling up the hill doing 40kph,when it flatens out or go down hill temp goes back to normal

Yeah the Toyo ones have a specific hole to fill with silicon oil.
The Mitsu ones are pretty much unserviceable as far as I can see.
You can buy a brand new clutch fan assembly for about $130 from Autobahn (Powermax brand) mine works fine.

Am a Motor Air Con Tech, generally once they have ceased operating properly, replace the hub, like Bitsa said, go the replacement,

thanks guys have a new one now