Hehehhe, I love it. Jumped all over that one Pete and Dave. Thanks for the
break in the annual slamathon. I'll add this tid bit. As the fan heats up(via
air flow over its finned body) the fan coupling becomes more resistive to slip
until it is in fact a non-slip fan. As things cool off, the fan begins to slip
again. The fan acts 'in theory' like viscocity of one of our favorite
subjects...engine oil. Hmmm.......engine oil, now there's a part we we could
opinionize on.....
PS- Not enough to entice a thread? This will put it over the edge...my
favorite is Castrol 20w-50 because I like the way it smells as it seeps through
the cork valve gasket and burns on the manifold. Like napalm in the morning, it
smells like victo .....I mean Triumph!
....and so do I.
;-)
--
On Thu, 30 Dec 1999 18:57:42 David Massey wrote:
>
>Message text written by Peter Zaborski
>>With the deep knowledge on this list I am sure someone knows the answer to
>this question about cooling fans.
>
>When the cooling fan is mounted to the engine via either direct attachment
>to the crank or through a fan belt, and activated through a viscous
>coupling, what it the mechanism by which the viscous coupling is activated?
>Is it based on some temperature switch in the coolant, or a temperature
>switch in the viscous coupling fluid, or a pressure switch in the viscous
>coupling fluid, or through some other means?
>
>Thanks in advance for any insights.
>
>Peter Zaborski CF58310UO
><
>
>Thank god, a technical question!
>
>The viscous clutch itself is sensitive to the temperature of the air
>passing by and responds accordingly.
>
>Dave
>
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