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viscous fan coupling

To: "Spitlist" <spitfires@autox.team.net>
Subject: viscous fan coupling
From: "Gary Hutton" <hutton@evansville.net>
Date: Wed, 18 Sep 2002 15:15:06 -0500
I have several questions about the viscous fan coupling on the later
1500's

What is it's purpose and how does it work?
How do you know if it's not working properly?  Mine spins freely when
turned by hand yet I've seen others that would barely make a complete
revolution when hand-spun.  Mine also has some lateral play - does this
mean that the tolerance ring is worn/bad? And finally, how do you get it
off there - 2 or 3 jaw puller?

Thanks in advance for the wisdom.

Gary Hutton
Newburgh, IN
76 FM50132U

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