Max:
I'm still here. But too busy to keep up with the list every day.
So I apologize for this late response.
Of course you have my permission to use the information.
Ned Kleinhenz
<< Date: Tue, 16 Feb 2010 09:25:49 -0500
<< From: "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310"
<meade.m.dil...@navy.mil>
<< To: "Mercedes Discussion List" <mercedes@okiebenz.com>
<< Subject: Re: [MBZ] OM606 Timing Chain Wear Measure
<< Message-ID:
<
1370e90cffd2ac4b8cb65267ba10c4b801db9...@naeachrlez02v.nadsusea.nads.navy.mil
>
<<
<< Content-Type: text/plain; charset="us-ascii"
<< For posterity, using Ned's method, I got very similar results (between 2
<< and 3 degrees of wear).
<< -Max
<< -----Original Message-----
<< From: mercedes-boun...@okiebenz.com
<< [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Max Dillon
<< Sent: Monday, February 15, 2010 4:55 PM
<< To: 'Mercedes Discussion List'
<< Subject: Re: [MBZ] OM606 Timing Chain Wear Measure
<< Answering my own post here. Searched the archives and found an exchange
<< between Ned Kleinhenz and Marshall Booth, here's the key part below.
<< Ned if you're still on this list, I'd like permission to also post this
<< great tidbit on the MBCA forum and credit to your name.
<< -Max
<< ------------------------------
<< --------------------
<< Glad I took Marshall's advice and replicated the chain stretch
<< measurement on my '95 E300D with the OM 606.910 engine. My first
<< measurement on Saturday was 4 deg.
<< The subsequent measurements, today, were 3 deg, 2 deg and 2.5 deg.
<< Think I'll keep this chain and check it again in 30 or 50k miles.
<< I discovered an important trick that other 606 engine owners may want to
<< know - The cam can be indexed for #1 piston TDC by running a pin through
<< holes that align the left cam gear and the front cam tower. One of the
<< bolts that holds the cam cover on the head is the perfect size to use as
<< this pin.
<< This bolt will fit tightly enough that I estimate the bolt will only fit
<< through both holes within < 1/2 deg of crank rotation.
<< When looking at the engine from the front of the car, correct crank
<< rotation is clockwise. To measure chain stretch, you must approach the
<< index postion only from the clockwise direction. Backing the crank off
<< a fraction of a degee reverses the play in the chain and makes the
<< measurement meaningless.
<< Ned Kleinhenz
<< '95 E300D x2
<< '85 300D
<< '80 300TD
<< -------------------------------------------------------
<< -----Original Message-----
<< From: mercedes-boun...@okiebenz.com
<< [mailto:mercedes-boun...@okiebenz.com]
<< On Behalf Of Max Dillon
<< Sent: Monday, February 15, 2010 4:37 PM
<< To: mercedes@okiebenz.com
<< Subject: [MBZ] OM606 Timing Chain Wear Measure
<< Dieselvolk,
<< I'm trying to measure the timing chain wear on my '95 E300 (OM606). I
<< cannot for the life of me find any marks on the camshaft at the #1
<< bearing tower. I've made this check on OM617 and OM603 engines, so I
<< know what I'm looking for, but this OM606 has got me stumped.
<< Anyone know the trick?
<< There is a set of marks on the third cam bearing tower and the primary
<< camshaft (two camshafts on this engine, remember), but they are not
<< easily aligned for a precise measurement. When I line them up, it looks
<< like timing chain wear is about 4 degrees. There's also a hole in the
<< gear on the second camshaft, and that hole can be aligned with a hole in
<< the #1 cam bearing tower. When I line that up, I measure about 10
<< degrees of wear!
<< Very respectfully,
<< /s/
<< Max Dillon
<< Charleston SC
<< '87 300TD 320k miles
<< '95 E300 274k miles "project"
<< '73 Balboa 20
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