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[TheBoy]

I would now guess the viscous is knackered and will never come on.  

No, no, you misunderstood me, it's actually brand new, along with the pump, and everything now works as they should !

Ahhhh!  Then it will work properly, well at least for a few months

I wouldn't have spent the money on the viscous, its not required under most circumstances - mine hasn't had one for way over a year. Manged to get it to 97C (on guage) hanging the back end out around the passes in the lakes, and 97C across Milton Keynes (the day I melted the brakes), otherwise it sits nicely at 95C (on guage) all the time.

[chartz]

Alright then, I can appreciate irony, but you don't live in France.
In summer, it can get really very hot, and when I hear all those beemers with viscous fans on, I wonder what would happen is they weren't there at all... 8-)

[TheBoy]

Alright then, I can appreciate irony, but you don't live in France.
In summer, it can get really very hot, and when I hear all those beemers with viscous fans on, I wonder what would happen is they weren't there at all... 8-)

The leccy fans would cool it

[chartz]

OK, you win.
But seriously ?

[TheBoy]

OK, you win.
But seriously ?

I've not had a viscous fan on for 18 months. I've had it up to 97C hanging the back end out going up the mountain passes, and up to 98C across Milton Keynes (a UK town with roundabouts every 1/4m or so) the day I wrecked the brakes (was in a hurry).

I have a very well serviced cooling system.

If I went to South of France, I probably wouldn't put viscous on....

[chartz]

Ok, thanks... and by the way I know Milton Keynes and its roundabouts !
I went there 18 years ago—well I had to, and I guess it's even worse today. Horrible indeed !

[TheBoy]

Ok, thanks... and by the way I know Milton Keynes and its roundabouts !
I went there 18 years ago—well I had to, and I guess it's even worse today. Horrible indeed !

Bigger now...

[valterferraz]

being igorant is like being blind, i guess...

i thought this viscose fan was some plastic of which the fan was made and started a new topic, since search didn't give much feedback...

sorry folks...

[chartz]

I would now guess the viscous is knackered and will never come on.  

No, no, you misunderstood me, it's actually brand new, along with the pump, and everything now works as they should !

Ahhhh!  Then it will work properly, well at least for a few months

I wouldn't have spent the money on the viscous, its not required under most circumstances - mine hasn't had one for way over a year. Manged to get it to 97C (on guage) hanging the back end out around the passes in the lakes, and 97C across Milton Keynes (the day I melted the brakes), otherwise it sits nicely at 95C (on guage) all the time.

Well six months have passed and you were right, the viscous fan is knackered again ! It's still under warranty, so I will have it replaced, but the mechanic has lost my trust and thinks I'm a liar or something like a pain in the a**. Viscous fans are cr*p indeed.
I'm sick and tired of that car (now the lift pump has given up the ghost).

[chartz]

Hello to all,

Well my viscous fan clutch is in my boot now.
Trouble is, the engine temp can get quite high : one kilometre going up a 13% slope had my temp meter climb to a high 100 °C +. The two electric fans switched on then (I'd say at about 97 °C). Temp then went down gently when I went down the other side, to reach 95 °C after five minutes or so.
The rest of the time, it's more like 92-93  degrees.
Should I worry ?
Thanks.

PS. lift pump fixed, power is back !

[Pitchfork]

Hello to all,

Well my viscous fan clutch is in my boot now.
Trouble is, the engine temp can get quite high : one kilometre going up a 13% slope had my temp meter climb to a high 100 °C +. The two electric fans switched on then (I'd say at about 97 °C). Temp then went down gently when I went down the other side, to reach 95 °C after five minutes or so.
The rest of the time, it's more like 92-93  degrees.
Should I worry ?
Thanks.

Mine behaved exactly the same but now the Viscous is permanently locked up (sounds like an RB211) but temperature stays below 97 °C
-Incidently the lock-up of the Viscous occured at the same time that the water pump bearing disintegrated & the temperature went off the scale in about 100 metres with the belt wrapped around various pulleys!

[chartz]

Thanks.
Actually my water pump is new, I just wanted to know if I should put the damn thing back (and drive a lorry) or whether it's safe keeping it in the boot. The cooling system is otherwise in tip-top condition.

[TheBoy]

I'm wondering if your rad is stating to silt up a bit - my old tractor ran for 18months with no viscous, and never went above 97, and that included some significant thrashings

[Turk]

I think the "Whoosh" is great. That's how a big engine should sound  

[Omegatoy]

Hmm, well i reside in Spain where the temps are regularly horrendously hot my TD runs around 94, and the only time i heard the viscous fan cut in was towing the caravan up a tremendous climb of 4 or 5 miles length coming up into Madrid through a place called desperados (where artics can only get up in crawler gear and they have to put thier hazards on whilst climbing as they are grinding up it)
the viscous cut in around 99 and stopped when we got  just over the top, must admit i was worried as its the hardest longest climb in third  gear its ever been asked to carry out, rpm was around 3k and the hill just seemed endless, never heard it on before or since, but regularly hear the low  speed leccy fans when pushing it around the mountains here, am i the only one here with a properly working viscous then?