[W126 Coupe] Jumped Timing Chain

[Mister McGoo]

Pavel;
 
A HOLE in your valve cover??! 
 
Maybe you should consider a new valve cover also, yes?
 
Just after you discover why. (The hole, I mean)
 
-Bellamy





> Date: Sun, 10 Dec 2006 21:26:41 -0600> From: zhur0002 at umn.edu> To: mbcoupes at mbcoupes.com> Subject: [W126 Coupe] Jumped Timing Chain> >  > crew> > Bought a 560sec last week with a hole through driverside valve cover so> assumed that timing chain jumped. Took the valve covers off the tensioner> is toast, guide rails are toast. Valves seem to be OK did not see any> damage on the cams or rockers. Could I have lucked out and all I will need> to do is put a new chain and tensioner and guide rails?> > Another question on my 560sel the one that likes to blow mysterious white> smoke on de-aceleration once a day or when ever it feels like it with new> heads . I found out that white smoke is oil my 5 and 6 cylinder spark plug> had oil residue on it. The oil consumption is about 1 quart every 3000mi > Ran compression test was> > 165 in #1 170 in #2 165 in # 3 165 in # 4> 165 in #5 170 in #6 165 in #7 175 in #8> > I thought that is respectable compression and the car is very powerful.> > So what is causing the white smoke? I did replace 2 tranny modulators.> Could it be the rings going bad or stuck, inside cylinder walls looked new> when i did heads on it about 10k miles ago> > thanks> Pavel> 380 sec amg> 560sel> 300cd> 560sec (new and injured)> 

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