Spider noise- '88 Spider?

[PaulS39832@domain.elided]

Has anyone out there experienced a metal-on-metal type vibration noise as 
they accelerate moderately?  The sound appears to originate somewhere in 
front 1/2 of the car.  It happens mostly in 1st and 2nd gears.  It also 
occurs when turning hard, and more when I have the weight of an additional 
passenger.  Over a year ago, it sounded as though something was hitting 
(possibly the fan when I crept up a very steep hill in San Diego, but I have 
not had the experience of trying to recreate that problem.  It has been doing 
this since I replaced the clutch and rebuilt the transmission (myself).  
Exhaust parts with exception of catalytic converter are new.  The catalytic 
converter did seem to have something loose when I shook it, but it seems to 
work fine.  My hunches include possibly worn motor mounts (especially after 
having the car up for a long time with the tranny out), gear train noise, or 
???  I wish I could make the sound for you.  If you you make a long sustained 
WRRRRRRR sound while stepping on your gas pedal under low gear torque, that 
will approximate it adequately.  Thanks
Paul Steffy in Chico CA, '88 Spider Veloce

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