Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-12 Thread WILTON
, 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

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-12 Thread Dieselhead
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

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-11 Thread OK Don
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 --- On Wed, Aug 10, 2011 at 7:33 PM, Fmiser fmi...@gmail.com wrote: Allan Streib wrote: I never have. My engine starts easily, has good power,

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-11 Thread Peter Frederick
A badly worn chain will slap, too. 8 degrees is the wear limit, but I'd personally not wait that long. By that time you are very short on low end power and the injection timing will be late enough to notice if not reset. Peter ___

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-11 Thread Fmiser
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

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-11 Thread WILTON
. 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

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-11 Thread Peter Frederick
@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

[MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-10 Thread Allan Streib
I never have. My engine starts easily, has good power, doesn't smoke, so I feel that this is a case where if it ain't broke don't fix it might apply. Many things that can be adjusted should be left alone in the absence of any problems. Is there a scheduled maintenance interval that includes

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-10 Thread Dieselhead
E I never have. My engine starts easily, has good power, doesn't smoke, so I feel that this is a case where if it ain't broke don't fix it might apply. Many things that can be adjusted should be left alone in the absence of any problems. Is there a scheduled maintenance interval that

Re: [MBZ] OM617 timing (was: 300 sdl timing chain,)

2011-08-10 Thread Fmiser
Allan Streib wrote: I never have. My engine starts easily, has good power, doesn't smoke, so I feel that this is a case where if it ain't broke don't fix it might apply. Well, not really. As the engine wears, the timing will retard. Which is the safer direction. And as it happens slowly,