The third option is to insert an offset key. Mercedes used to sell them.

Tom Hargrave


-----Original Message-----
[mailto:[EMAIL PROTECTED] Behalf Of John Berryman
Sent: Wednesday, January 18, 2006 8:39 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] OM617 chain stretch

On Jan 17, 2006, at 7:30 PM, Loren Faeth wrote:

> Has anyone got a link to the instructions on measuring valve timing  
> on the
> OM 617 300D?  I need to send instructions to someone, and i don't  
> want to
> type it all out.
     How's this: Remove valve cover, line-up marks on cam sprocket  
and front bearing tower, read scale on front damper. This is to check  
chain stretch but will tell you if valves are in time. The only way  
to change timing of the valves is to set the sprockets in the wrong  
position or change a worn chain.

Johnny B.
I Mac Therefore I am

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