Spider motor mounts a weak point?

[Tessie McMillan <tessmc@domain.elided>]

My Spider's motor mounts were replaced in '96 after a fan-blade 
broke off and catapulted through the engine compartment. I can't believe 
I've put that many miles on the car since then, but I certainly can hear 
the (new) fan blades scraping on the shroud. Could my motor mounts have 
started sagging again already? Is this the expected life span of a motor 
mount? When I was younger, my mom had an old '66 Mustang that was bone 
stock original until a motor mount broke (somewhat violently) in '84 while 
I was driving. I remember because that was the year my mom defected and 
bought a Honda. 18 years is a lot longer than 5 years.... 

Also, if anyone is curious, no I haven't had a chance to replace the fuel 
filter yet. Thanks to all the folks who sent instructions and 
suggestions (and thanks for the offer of help, Zach!) I'll let you know 
when the "event" occurs.

Tess
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