[W126 Coupe] running rich

[Gary]

where is the cold start switch?  




________________________________
From: Franklin J. Bananas <franklin_j_bananas at hotmail.com>
To: mbcoupes at mbcoupes.com
Sent: Thu, July 15, 2010 10:53:01 PM
Subject: Re: [W126 Coupe] running rich

Hi guys,
 
I have a 1986 Euro 500 SEC with 238,087 miles; my car runs well and it has not 
been abused, but it burns some oil and runs too rich. In the morning when I try 
to start the car, it will not start unless I press on the gas paddle or attempt 
to start it two times...
 
I'm thinking of replacing the cold start switch. What would you recommend? Also 
is there an electronic device (computer) that regulates the idle and fuel 
mixture?
 
Thanks in advance,
 
James
 
________________________________
From: attila13 at bellsouth.net
To: mbcoupes at mbcoupes.com
Date: Tue, 29 Jun 2010 19:17:56 -0400
Subject: Re: [W126 Coupe] running rich


        The best advice I have is to lean-out the engine a full
        half turn.  This is what I needed to do, after I changed 
the entire exhaust system.  It now takes 3 short tries 
to fire it up, but no more black residue in the tail-pipes,
all grey.  Performance has not been affected, at all, and
if you don’t like it, you can always turn it back, following
the inspection.  Of course, if the leak is too large, playing
with the tower may not solve the problem.  If it is the 
large boot on top, you may be able to seal it temporarily
with tape/glue.  If it is one of, or multiples of, the eight 
rings between the manifolds, you can change these yourself,
but it’s time-consuming.  Are you using premium grade
fuel??  Try some aviation fuel, 1/3 max to full tank.  Burns
very clean.  Just make certain that the cooling system 
works perfectly.
 

________________________________

From:mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com] On 
Behalf Of Clay Moizo
Sent: Tuesday, June 29, 2010 3:24 PM
To: mbcoupes at mbcoupes.com
Subject: [W126 Coupe] running rich
 
Hi Guy's
It's Clay again still playing w/the  88 560 couldn't pass emissions too rich. 
Took to have ajusted on machince at M/B service and they told me it was a leaky 
intake manifold, and wanted $1600.00 to fix it. I almost dropped to my knees 
because another mech. I've had some work done by told me it was listed as 6 hr. 
job. He said $600.00 unless he had problems w/bolts snapping of and then it 
depened on time. I once had a 88 560 sel and it was not passing and a different 
guy put a BB in the hose of the map sensor and it passed perfect, but can't 
remenber if that one was running rich or lean. But when they opened the hood for 
that fume test the tester squeezed the map hose to check. Any Ideas on what I 
should do w/ this car, all health problems I've had, have had me on my back for 
alittle of 9 Months and can't even walk over 20 ft. 

I broken the same ankle 3 times in the past year because of the leg giving out. 
Couldn't have invasof Surgery because of comidin for heart. I was just thinking 
of getting rid of it as, and eating the loss.
Thanks,
Clayton Moizo
 
88 560 SEC
79 450 SLC EURO
Sold the 300CE
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