When mine broke, stealer replaced several valves, lifters, chain (of
course), several things I don't remember and had the head machined.
Wilton
----- Original Message -----
From: "Peter Frederick" <psf...@earthlink.net>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Thursday, August 11, 2011 11:58 PM
Subject: Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)
Usually a broken chain means a busted camshaft tower on a 61x engine and
little else. Usually means bent valves on a 60x engine, but little other
damage.
Peter
-----Original Message-----
From: WILTON <wilt...@nc.rr.com>
Sent: Aug 11, 2011 10:38 PM
To: Mercedes Discussion List <mercedes@okiebenz.com>
Subject: Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)
In '96 at 89 kmi, while cruising at 60 mph, original chain on my '91
350SDL
suddenly and without a sound broke, leaving me coasting quietly to a stop.
'Ruined that day and several others. Coupla years ago at 192 kmi,
replacement chain was getting noisy; I had it replaced again as a
precaution.
Wilton
----- Original Message -----
From: "Fmiser" <fmi...@gmail.com>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Thursday, August 11, 2011 10:51 PM
Subject: Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)
OK Don wrote:
Isn't an extremely stretched (worn) chain likely to fail? I
seem to remember 5-6 degrees in a 617? I chain break on the
higway could ruin your day ---
Yes, but not greatly. In general, chains don't break like belts
do. They just wear until... about 11 degrees or so you risk
valve/piston contact, I recall. That makes an expensive "klunk"
sound.
-- Philip
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