SL/SLC-Class (R107) 1971-1989 : 250SL, 280SL, 450 SL, 380 SLC, 450 SL, 380 SL, 560 SL

SL/R107: Broken Upper timing chain Guides

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Old Apr 7, 2017 | 02:57 PM
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Billtoothaker's Avatar
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87 560SL
Broken Upper timing chain Guides

Hello, In my 87 560SL I am replacing the timing chain and guides, the right side was broken and the pice missing, the left is broken, but the broken piece is missing.

1) Both upper guides (part#117 052 09 16) have broken at the inner pin Hole. the right side The inner pin is there but the inner half of the guide is missing.


This is the broken one I removed



You can see where the pin is still in place



This is the left side I haven't removed yet, but you can tell by the gap between the guide and the chain that the other end must be broken.



This is a better picture of the left side showing the angle of the guide better

Has anyone seen this? what's your opinions on if I should take the timing cover off to make sure there isn't some remnants left behind?

The car ran excellent but I did get a chain slap once in a while.
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Old Apr 7, 2017 | 03:17 PM
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myway's Avatar
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From: Middle of Nowhere, USA
450SL
This is a well known flaw in the 107 V/8s after '73. To remove the front cover either front subframe or the engine has to be removed. That is because the oil pan has to be dropped. Lots of info. on BW http://www.benzworld.org/forums/r-c107-sl-slc-class/
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Old Apr 7, 2017 | 03:23 PM
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87 560SL
OK, I just got the subframe back in so it should come out easy!
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