Viscous fan re-oiling

[Bat21]

As the viscous coupling is another known problematic area on the 80, has anyone successfully done a viscous coupling re-oiling on theirs?

I'm sure I have read somewhere that you can get the oil from Toyota for the job and that it is a fairly easy task

 

[Jon Wildsmith]

there's quite a lot been written about it on ih8mud I think.

 

[Chas]

As the viscous coupling is another known problematic area on the 80,

What are the problems? what should be looked for?

 

[Paul]

Just replaced mine

 

[Bat21]

Just replaced mine

Was it a genuine one Paul? How much was it?

 

[sae70]

'Twas 'chris lc90' that did a detailed viscous fan oil replacement how toooo...........

viewtopic.php?f=14&t=8256&p=49287

[youtube:3p2dg8s5]3ACx7GTCn7Y[/youtube:3p2dg8s5]

 

[BRE Fabrications LTD]

You can pick the oil up from a Remote Control Hobby store. IIRC it's silicone oil with a cst of 10000. It's not expensive. I re-oiled mine, but it didn't make a difference. My 80 occasionally ran hot when going up long motorway hills on warm days, hence the reason i tried it. Then on the Happy valley trip up a long climb in L2 the heat crept up again.

IMHO better to replace with the new one, which is blue, than to muck around with it. I got mine from Ian and it wasn't too expensive.

 

[vrecha]

Two topics on this subject (the first one is for 1HZ viscous coupling used in 105 series LC): one, two.

Haven't tried it yet because there's no need so far. But when the time comes I'm prepared to play with refilling first and after finding out it doesn't work buy a new unit.

 

[Bat21]

Thanks for the info, links and YooToob vid

This sounds a bit hit and miss so, I might give Ian a shout and see how much a new Blue one is.

As I'm fitting an electric fan in front of the rad and one in the bonnet pushing air out through a Kenlowe 'bulge', I'm hoping I should have all angles covered

 

[Ian-P]

Re-filled mine. Fairly straightforward, just like the guide here: http://www.offroad80s.com/how-to-top-up-your-fan-clutch-and-do-the-blue-fan-clutch-mod-t1160.html