[W126 Coupe] New to the list ...

[Shayegan, Richard]

You ought to buy yourself an official MB service manual CD (if you can
no longer get it from 1-800-FOR-MERC try www.blueridgemb.com)

I'm not saying for sure your problem is a timing chain, though with 183k
miles it's a good idea anyways since these are interference engines and
if it goes it take sthe engine with it. While you're in there might as
well replace the upper guides (plastic) too and check the plastic
fittings that oil the cams.
Richard


> -----Original Message-----

> From: mbcoupes-bounces at mbcoupes.com 

> [mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of DERRICK SCHMIDT

> Sent: Wednesday, April 11, 2007 10:04 AM

> To: Mercedes Coupes Mailing Lists

> Subject: Re: [W126 Coupe] New to the list ...

> 

> Thanks.

> 

> I think I'll do the valve before the timing chain ;-)

> 

> I have done the timeing belt on a Taurus SHO - that was a 

> whole weekedn.

> 

> DGS

> ---------- Original Message ----------------------------------

> From: "Shayegan, Richard" <rishayegan at davidson.edu>

> Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>

> Date:  Wed, 11 Apr 2007 08:00:03 -0400

> 

> >The heat issue I'm guessing is the monovalve. That's like a 5 minute 

> >fix. I have circled it in this photo 

> >http://Davidson.smugmug.com/photos/142891997-L.jpg Buy a repair kit, 

> >open it, replace the internals, close it (do this on level ground or 

> >you'll lose like 6 cups of coolant).

> >

> >On the miss, with 183k miles it could also be timing chain 

> stretch (I 

> >know on my 380 when the timing chain stretched it started to 

> run like 

> >the distributor was shot) Richard

> >

> >> -----Original Message-----

> >> From: mbcoupes-bounces at mbcoupes.com

> >> [mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of DERRICK SCHMIDT

> >> Sent: Wednesday, April 11, 2007 1:18 AM

> >> To: Mercedes Coupes Mailing Lists; Mercedes Coupes Mailing Lists

> >> Subject: [W126 Coupe] New to the list ...

> >> 

> >> ... but know how they work.  Have had a Sunbeam Tiger for 

> some time.

> >> 

> >> Just inherited my parents' '83 500 SEC.  White with Navy 

> blue leather 

> >> interior.

> >> Beautiful car.  They grey marketed it from Germany in '84.  

> >> Drove it myself @ 150 mph in Germany.  Dad has taken great care of 

> >> the car over all.  Looks absolutely perfect from about 10 

> feet, but 

> >> now has 183 k miles and a few issues.

> >> 

> >> Two at the top of the list:

> >> 

> >> Have not chekced the obvious (distributor, etc) yet, but it has a 

> >> very noticeable miss at idle.  Just drove it from L.A.

> >> to Sacramento and still pulled from 85 to 110 pretty well.  

> >> Any thing else to check?  Plug wires look pretty new.  

> Will check the 

> >> plugs themselves as well.

> >> 

> >> Also, it seems the heater core is open to hot water.  Can minimize 

> >> the heat into the cabin by running fresh air through the 

> dash vents 

> >> but temperatures spend a significant amount of time in the triple 

> >> digits here so I need to get the heat to stop.

> >> 

> >> Any starting points would be appreciated.

> >> 

> >> Thanks.

> >> 

> >> Derrick

> >> 

> >> 

> >> 

> >> 

> >> ________________________________________________________________

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> >> 

> >> 

> >>  

> >>                    

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> >> Postings remain property of MB Coupes, L.L.C.

> >> 

> >The MB Coupes Website!

> >W126 SEC Mailing List

> >Postings remain property of MB Coupes, L.L.C.

> >

>  

> 

> 

> 

> 

> ________________________________________________________________

> Sent via the WebMail system at mail.starstream.net

> 

> 

>  

>                    

> The MB Coupes Website!

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> Postings remain property of MB Coupes, L.L.C.

>