GQ viscosse fan

This from a guy who did his Toyota fan- probably identical I guess

"Separate the two half's and be careful not to damage the O-ring. The O-ring always seems to get stretched out.

The manual says to use 50mL of 3000Cst. silicone fluid to refill the fan clutch. Each bottle is 18mL. Toyota P/N 08816-03001

After cleaning out all of the old silicone from the fan clutch half's, add about 50mL of silicone to the lower half of the clutch. This should be just enough to fill the holes and not overflow into the O-ring groove.

The fan clutch is full of silicone and the O-ring is in the back half of the groove. Note how the O-ring has stretched. Some people cut out a small section of the O-ring and super glue it back together, but I didn't do that......

I placed the top of the clutch on the back of the O-ring and used a small flat blade screwdriver to push the O-ring back into it's groove. You must apply some pressure on the top piece to prevent the O-ring from popping out of the groove.

Reinstall the outer philips screws to secure the cover, install the fan, and you are all done."


There were a few fotos attached but they don't really tell you much..

Thanks Gerry- but why do you need a lathe???
Mine LOOKS as though it will just come apart when I undo the bolts around the edge- then replace the silicon, carefully refit the O ring and bolt it back together. Why would I need to use a lathe- I am confused???

P.S. Gerry- I had a close look at the fotos from the guy who did it on his Toyota- about 6 fotos as he did it step by step. The clutch looks identical and is the same brand as the one on my Nissan so I don't know why I might need a lathe- thanks for your response........

Actully it is quite a lot of power...
Back in my petrol head days with a Hot V8 Holden, we measured the difference at the wheels... something like 4 or 5 HP. Certainly enough to make a difference in these days of astronomical fuel prices.. Of course I'm getting so much power from my TD42 that the power loss wouldn't concern me...cough ..cough.
It's probably the noise that would annoy me more though.
I agree that locking it up is an option -but that is one I'm trying to avoid.

BTW Peugeout had the best setup on some donks incl my old man's diesel- a totally freewheeling waterpump mounted fan - which locked solid when necessary with an aircon style electromagnetic clutch. Best of all worlds- worked a treat!! If I knew how to adapt one I would.