[W126 Coupe] Engine death rattle ?

[Mister McGoo]

At 100k miles the chain is due to be changed.  A stretched chain results in chain slap at the moment of engine start-up and that often breaks up the [old, brittle] chain guide rail.  Most chains jump at the moment of start-up.  Whether that is the noise or not, I'd be saving bottle money for a new timing chain/guides/tensioner soon.  Otherwise, the risk of trashing the engine keeps raising.
 
-Bellamy 




> To: mbcoupes at mbcoupes.com> From: Richard_Hesek at raytheon.com> Date: Fri, 7 Sep 2007 08:36:04 -0400> Subject: [W126 Coupe] Engine death rattle ?> > I have been driving my 87 560 SEC about half time over the last 3 weeks.> 3 or 4 days per week instead of 7.> > The last 3 or 4 times I have started it, there is a light rapping which> lasts as long as it takes for the engine to start. Once it is running the> rap disappears.> This is not a tapping, ticking or rocker arm noise.> It is as though the oil has not reached all the parts it is supposed to> lube.> > The timing chain is original and has 100k miles on it. I assume the oil> pump chain is the same also.> Good power and normal fuel consumption.> > Any thoughts?> > Thanks,> > Rick Hesek> Northboro, MA> > The MB Coupes Website!> W126 SEC Mailing List> Postings remain property of MB Coupes, L.L.C.

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