Re: Spider drivetrain shutters when slowing to stop

[Alan Lambert <gerard@domain.elided>]

The obvious question--have you checked the Giubos (the rubber universals) 
and/or any drive shaft bearings?

On Tue, 23 Nov 1999, Wallace Martin wrote:

> Recently encountered the strangest problem on my 1984 Spider Veloce:
> 
> When coming to a stop with the car in gear and clutch depressed, as the 
> RPM's fall to about 1000, I get a rapid "thump-thump-thump" from the 
> rear/underneath area, and the engine begins to stall.  The shuddering then 
> stops and the engine RPM's return to idle.  The behavior the same when 
> stopping with the car in neutral and the clutch disenaged.
> 
> As further info, the clutch seems to momentarily slip with a squalk/squeal 
> occasionally when accelerating and letting clutch out.
> 
> I jacked the car, and was able to freely turn the driveshaft/differential.  
> Filled and vented the clutch operating cylinder, and movement of clutch 
> operating cylinder piston is in spec with the manual (about 1/2").
> 
> Engaging the rear wheels while running the car on jackstands brought on the 
> same "whumping". My current plan of attach is to replace the clutch.  Does 
> anyone have any info on this job? I've got the factory manual for guidance, 
> but I seem to recall some "engine-mount loosening" technique from 
> Alfa-Digest.  Any other tips, or idea about the root of this mystery would 
> be greatly appreciated.
> 
> Thanks in advance,
> Wallace Martin
> 
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================================================================================
Regards,
Alan G. Lambert___________________________________<gerard@domain.elided>
           *******Los Altos, California (office)*******

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