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  #1  
Old 12-30-2011, 09:23 PM
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Location: Las Vegas, NV
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Another reason to change your timing chain

Hi every one

The chain jumped on the left bank of this 560.





Damage to the block on #8 cylinder.



The head on #8 cylinder.



Nice view of the water jacket and the thickness of the cylinder walls.



Cylinder wall on #7 has also cracks. A valve broke in this cylinder too.



The piston of #8 cylinder.

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76 240 D. Bought in 1998 for $25.
85 300D. Got it for free with a bad engine. ( Sold )
60 Unimog 404. What was left of it, was given to me. Now powerd by 617A.
88 560 SEL. Bought without engine and trans. Now powerd by 617A.
67 250 SE. Cuope. For resto or sale.
64 220SE. For resto.
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  #2  
Old 12-31-2011, 08:53 AM
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how many miles on the chain? thanks, chuck.
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  #3  
Old 12-31-2011, 09:26 AM
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Quote:
Originally Posted by porkface View Post
how many miles on the chain? thanks, chuck.
Not sure.
The car had 170000 to 180000 k on the odometer.
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76 240 D. Bought in 1998 for $25.
85 300D. Got it for free with a bad engine. ( Sold )
60 Unimog 404. What was left of it, was given to me. Now powerd by 617A.
88 560 SEL. Bought without engine and trans. Now powerd by 617A.
67 250 SE. Cuope. For resto or sale.
64 220SE. For resto.
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  #4  
Old 01-01-2012, 10:52 AM
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Join Date: Nov 2002
Posts: 870
if the odometer works, that's kinda low for a chain break. i'm used to seeing them break at about 120-125k miles. yours was 99-105k miles. and i've not seen an engine destroyed like that, either. usually it's just 4 bent valves. but, that's why i like to pull covers on all v8s i see for the first time and cars i know, every oil change after 100k miles. thanks, chuck.
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  #5  
Old 01-01-2012, 01:22 PM
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Join Date: Aug 2003
Location: Phoenix
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Changing the chain doesn't really do anything for you if the rest of the system is bad. Conversely there's really no reason to change the chain if the rest of the system is good. The car most likely had original nylon chain guides.
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  #6  
Old 01-01-2012, 02:37 PM
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ouch !

ugly photos of damage,, Question,, just got my new timing chain,, it came with the master link that needs the peening rivet tool,, of which I do not have,, noted that there is a master link that uses the clip retainer ,,for $25 I would prefer to use the easy link type , any down side to the link clip type ? ty
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  #7  
Old 01-01-2012, 03:34 PM
engatwork's Avatar
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Location: Soperton, Ga. USA
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Dave you can use a ball peen hammer to "peen" the edges of the master link after it is assembled and accomplish the same thing as the press tool.

At about 260k miles I replaced the head gasket on my 95 E300 and while I had it apart I went ahead and replaced all the slides/guides. I just (within the past month) rolled in a new chain at 285k miles. It was still on the original chain.
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  #8  
Old 01-01-2012, 06:28 PM
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Quote:
Originally Posted by deanyel View Post
Changing the chain doesn't really do anything for you if the rest of the system is bad. Conversely there's really no reason to change the chain if the rest of the system is good. The car most likely had original nylon chain guides.
Are you saying a meticulously cared-for engine is less likely to experience chain issues prematurely? Or would you say it is the luck of the draw? I have pulled apart an OM602 at 247K with very little chain wear (or "stretch") yet there was wear on the guides. Having it apart, I replaced chain and upper guides, with the exception of the slightly worn banana rail, omitting that chore since I didn't pull the timing cover.
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327K on 1986 W201, 602.911, 722.414 2.5 190D ("The Red Baron")
139K on 1993 W124, 104.942, 722.433 2.8 300E ("Queen")

http://farm5.static.flickr.com/4081/...0bb92d3c_m.jpg http://i370.photobucket.com/albums/o...g?t=1325284354

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  #9  
Old 01-01-2012, 06:30 PM
sasquatchgeoff's Avatar
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Quote:
Originally Posted by Dave Donaldson View Post
ugly photos of damage,, Question,, just got my new timing chain,, it came with the master link that needs the peening rivet tool,, of which I do not have,, noted that there is a master link that uses the clip retainer ,,for $25 I would prefer to use the easy link type , any down side to the link clip type ? ty
Tool is available for rent on the tools forum, I believe.

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327K on 1986 W201, 602.911, 722.414 2.5 190D ("The Red Baron")
139K on 1993 W124, 104.942, 722.433 2.8 300E ("Queen")

http://farm5.static.flickr.com/4081/...0bb92d3c_m.jpg http://i370.photobucket.com/albums/o...g?t=1325284354

Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
- Albert Einstein

take a walk down memory lane...
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