[W126 Coupe] smoke on start up?

[Robert Cavazos]

Richard,

I agree with Bellamy, if you're only getting blue
smoke on start up, don't worry about it. However, if
you notice it smoking while sitting waiting for the
traffic light to change, then you may want to start
thinkking about valve guide seals. 

My wife's 560SL was smoking pretty bad at idle when
hot outside, and my SEC was starting to as well. I
replaced the seals and all has been well for several
months (thanks to Mike R. for the valve spring
compression tool). I know the valve guides are
probably worn, but I figure doing the seals a time or
two more when needed is way cheaper than paying somone
to do the guides.

My 2 cents.

Bob

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

> For a long time now (5 years or so) I've gotten a
> puff of black smoke
> out of the tailpipe when I cold (or cool) start the
> car. I basically
> ignored because last time I had the car in the shop,
> I showed the guy
> (he was replacing a leaky fuel line while I was on
> the road, but he was
> a good mechanic at a good dealer MB of Alexandria)
> and he said it's just
> age and not to worry about it. Well today when I
> cold started it I
> noticed the smoke looked like it might have been
> bluish. Cool starts
> still only do black smoke, and once started the car
> is fine (no smoke
> even at WOT, I'm getting good times for a 380, and
> it idles and runs
> like glass even with busted motor mounts and my
> starting problem has
> gone away, I guess I was too lean). What does this
> mean? I mean, clearly
> it means some seal is on it's way, but which seal
> would only burn oil on
> cold start (oil level is exactly where it is when I
> changed the oil 2000
> miles ago) and what's the reason behind my puff of
> black smoke on cool
> starts?
> Thanks,
> Richard
> The MB Coupes Website!
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> Postings remain property of MB Coupes, L.L.C.
> 



		
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