93 S4 viscous fan coupling

[Ado Sigal]

All the viscous couplings on all clockwise turning engines are left 
thread, for the shaft that is, so they can't get undone with engine turning.

HTH, Ado


Bill Shaw wrote:

>Don't know if it's the same,  but I just removed the fan on my '99 a6qa in the process of doing the belt and it was a backward thread.  You're talking about the one big nut,  not the little ones,  right?
>
>hth,
>
>Bill
>
>
>john at westcoastgarage.net wrote:
>
>So I'm helping a friend do the T-belt on his '93 S4, and the viscous fan
>coupling is resisting our efforts to dislodge it.  My V-fan coupling
>experience is with BMWs and MBs, which use left hand threads to secure
>the fan clutch to the hub.  Are Audis the same?  As always, all
>knowledgeable replies are sincerely appreciated!  TIA, John
>
>
>  
>
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