RE: Centerforce Clutch Problem - Update

[Dave Walters <whdavid@xxxxxxxxx>]

Brian Schlump wrote:
> 
> Today I removed the clutch and checked it and the flywheel.  All the 
> mounting bolts were tight.  The surface finish of each looked great, no 
> heat checking or hard spots evident.  The machining marks were still 
> obvious on the surface of the clutch, and the surface grinding marks 
> were still obvious on the flywheel.  The thing that looked strange was 
> the big difference in color on the face of the clutch plate.  One half 
> looked a normal dirty steel color, while the other half was a dark blue 
> / brown color, almost like 1/2 of the clutch plate was contacting the 
> disc differently than the other half.  The same thing appears on the 
> flywheel, but the brown color wasn't quite as dark as on the clutch.  In 
> 
> hindsight, I wish that I had marked the mounting position of the clutch 
> to the flywheel, so that I could compare the location of the 
> discoloration in each piece. 
> 
> The clutch disc still has plenty of usuable lining left, and appears to 
> be worn evenly on both sides.  The throw-out bearing was replaced with 
> the clutch, and is still good.  The disc slides freely on the input 
> shaft, and the tip of the shaft is fine, and so is the pilot bushing.  
> The clutch fork lines up with the centerline of the hole through the 
> bellhousing.  
> 
> I'm still puzzled....Brian
> 
> '64 Belvedere
> Davenport, Iowa
> 
> "The difference between ordinary and extraordinary is that little 
> extra."

A guy suggested checking the surface of all the pressure plate/discs 
with a straight edge.He thinks they're cupped or warped. 

  Dave Walters
  Denver, Co.

  


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