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Discussion Starter #1
It does exist! I've just purchased a heavy-duty chain guide for my M117 from my Mercedes parts specialist. It's CNC machined green plastic and much, much thicker. The price was pretty high but for peace of mind it's worth the $90. I'll post a pic later today. Apparently you only need it for one of the guides, the one that fails the most.
 

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It does exist! I've just purchased a heavy-duty chain guide for my M117 from my Mercedes parts specialist. It's CNC machined green plastic and much, much thicker. The price was pretty high but for peace of mind it's worth the $90. I'll post a pic later today. Apparently you only need it for one of the guides, the one that fails the most.
Pics and a part #!
 

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This is great, there IS an aftermarket metal/ rubber covered piece for the M116, two of which I installed in my 380SL. The claim is that if your chain gets loose from a bad tensioner, you will definitely know from the extreme racket and have plenty of warning before something else breaks.
 

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2004 SL500, 1993 S420, 1990 420 SEL, 1985 500SE, 1994 Toyota Supra Aerotop
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Discussion Starter #4
Here we are:

guide.jpg

guide2.JPG

guide3.JPG

It's pretty clear this is a custom made part since it is machined rather than moulded, not an MB part. It is listed on the invoice as:

1170520916 (PACTINE GUIDE) $81.82

If you ask, I'm sure MB Spares (the specialist supplier) will ship overseas. I'll have to call them to see who/where this was developed since I've never seen this part for sale anywhere else. Here's their site: Australia's leading Mercedes-Benz website
 

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2012 CL550 4MATIC Coupe
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Nice! How much were they? 81.82 AUS? It's almost 1:1

I wonder if i can get a set here before assembly starts?
 

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Mike, I am sure John Green from MB Spares and Service via the link in the above post will be happy to ship to the USA, he ships to NZ, South Africa and the Pacific...

If you run into problems, PM me
 

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1988 560 sel,2011honda pilot 4wd ,08 gti the baby,91 190 2.6(sold) NA 95 volvo 855T wagonTurbo (DD)
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someone needs to sticky this..maybe we can get a group buy and maybe they will ship them here.
 

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looks as if that could be easily fabricated from aluminum. Would the wear debris from the chain rubbing on aluminum be a problem? Maybe one should start from a block of teflon so the wear debris is a lube :)
 

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87 Euro500HVSEC. 88 Euro 560HVSEC. 89 Euro 560HVSEL
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I think that Meyle has been making heavy duty chain guides from metal for some time. At least the last 3 years.

I've not used them but they cost about $20 as opposed to $4-5 that the plastic ones cost.
 

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I think that Meyle has been making heavy duty chain guides from metal for some time. At least the last 3 years.

I've not used them but they cost about $20 as opposed to $4-5 that the plastic ones cost.
$20 is cheap insurance in a $10,000 engine. I need to do my SEC and SEL timing chains, and they'll both get these metal guides now that I know about them!!
 

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another choice-
Meyle makes alloy guides with bonded hard plastic on the surface which you can buy off an ebay seller in the US for $20
That is a good price, but those are for a 116. The 117's are different.
 

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2012 CL550 4MATIC Coupe
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I just ordered myself a set for my Euro Motor. Don't know that I'm a fan of the metal ones.

I'm glad that this was brought up at this time. A few days later and the motor would be back together and I would have to take the timing case back off to swap, or even not at all.

Thanks harlz!
 

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Discussion Starter #15
Glad to help! It's only since I was sent out M116 instead of M117 guides that I came across this, as they asked me if I wanted the 'upgraded' version. Good luck with getting it all together, I'll be putting mine in soon.
 

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I just ordered myself a set for my Euro Motor. Don't know that I'm a fan of the metal ones.

I'm glad that this was brought up at this time. A few days later and the motor would be back together and I would have to take the timing case back off to swap, or even not at all.

Thanks harlz!
I have the metal style in my M104 - there is no comparison between the plastic and the metal/plastic. The metal really is far superior to the solid plastic style.
 

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There's plastic.... and then there's plastic. Has the material these green guides are made of been tested long-term under the amazingly diverse and demanding conditions similar to those in which we expect it to unfailingly perform as the line of defense between mechanical ecstacy and disa$ter of Titanic proportions?
 

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1983 DIY 500 SE 117.963..5-liter V8, 1994 DIY E420 5-liter M119.960..V8, '09 CLK550 5.5-liter M273
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Ha ha In lowly layman's terms, have these new guides undergone long term testing anywhere yet ?
 

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2012 CL550 4MATIC Coupe
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Nice Shop

They have a pretty big shop with a lot of nice Benz's there.

I wrote them and asked a bunch of questions. Materials, testing, etc.
 

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