Fan coupling

Submitted: Monday, Mar 21, 2016 at 21:41
ThreadID: 131892 Views:2313 Replies:5 FollowUps:1
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Gday
The other day my son took my Toyota away , about 350 km. I since have checked the oil and water , i found the air conditioner belt had come off its pully and wraped itself around the fan. What i want to know is , how long will the coupling last if the fan has been stopped by the belt.I know the belt was on when he left home.
Muzbry
Great place to be Mt Blue Rag 27/12/2012

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Reply By: HKB Electronics - Monday, Mar 21, 2016 at 21:55

Monday, Mar 21, 2016 at 21:55
The coupling of the fan is achieved by the drag of viscous oil between two plates, I don't believe it will have hurt the coupling.

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AnswerID: 597624

Reply By: Dean K3 - Monday, Mar 21, 2016 at 22:19

Monday, Mar 21, 2016 at 22:19
Might be idea to replace both fan and coupling unit prevention better than cure.

Only say this as when having bit of a extended trip back in 2014 came across couple with isuzu 4wd truck with camper had a fan blade disintegrate whilst traversing Bungle bungle track back to hwy.

One week later waiting for new radiator to arrive ex perth at Halls creek wrong radiator two models and bolt shape pattern changed mid manufacture period.

In short better play safe than be sorry and have greater issues occur when out remote with bugger all assistance.
AnswerID: 597625

Reply By: Ron N - Monday, Mar 21, 2016 at 23:41

Monday, Mar 21, 2016 at 23:41
Muzbry - Here's a simple test for the viscous fan coupling. Shove your fingers in the fan, when it's running.

If the fan stops, the VC is shot. If you lose several fingers, the VC is good to go, for another 100,000 kays!

Would I lie to you?? Here's the video to show you how! [;-)

https://www.youtube.com/watch?v=wEnY9oXW9PU

(Seriously, if the VC is leaking oil, or if there's visible movement in the shaft, or if the fan turns really easily when stopped, then I'd suggest you suss out a replacement.)

Cheers, Ron.
AnswerID: 597629

Reply By: MUZBRY- Life member(Vic) - Tuesday, Mar 22, 2016 at 07:37

Tuesday, Mar 22, 2016 at 07:37
Gday
Thanks fellas, i'll go for the "fingers in the fan" method of testing . Should be a lot of fun.
Muzbry
Great place to be Mt Blue Rag 27/12/2012

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AnswerID: 597632

Reply By: Malcom M - Tuesday, Mar 22, 2016 at 10:31

Tuesday, Mar 22, 2016 at 10:31
I'd be more concerned about any overheating of the engine rather than the viscous fan...
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Follow Up By: MUZBRY- Life member(Vic) - Tuesday, Mar 22, 2016 at 12:54

Tuesday, Mar 22, 2016 at 12:54
Gday Malcom
Dont be concerned , everything is under control.
Muzbry
Great place to be Mt Blue Rag 27/12/2012

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