<VV> Re: broken pinion

[djtcz at comcast.net]

I would not expect any clutch to be able to break ring or pinion teeth.
Close inspection of the broken bits should tell a tale.

I'd expect to find one of 2 things.
1 - collateral damage made by a hunk of something solid having become wedged in the gear mesh causing an instant overload.
2 - "beach marks" in one of the breaks, starting from some flaw in the tooth, progressing over time until the tooth was too weak.  That tooth could then become the chunk that caused the second tooth to fail as in part 1.

http://www.tribology.co.uk/services/investigate/g01-0.htm
--
Dan Timberlake

-------------- Original message -------------- 
The burning question is why did it break in the first place?? Since I was'nt 
doing any gymnastics
Someone told me that it's possible that a pressure plate can "grab" the 
clutch causing the diff to break?  How true is this?
  Nigel