Thomaspin has a website where he's posted a ton of great articles with pictures on changing timing chains, etc on his two Mercedes:

http://www.pindelski.com/

Click on cars, and in at least two of the articles he shows the degrees of timing chain stretch.


Also, Mike Tangas just checked the amount of stretch on his 72 280 SE 4.5 and ended up changing the chain and tensioner.

He posted the procedure and the results just this past week. Do a search under his username.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".