[W126 Coupe] 1986 560 sec died on road

[Mike Beyersdoerfer]

Thanks Dick
On Apr 13, 2009, at 9:24 AM, Dick Spellman wrote:


> Pins 7 & 8 are in the fuel pump relay HOLDER. Unplug relay from  

> holder and then mark with white paint the two pins which are in  

> parallel.  It does not hurt to add a heavy gauge (as in 16 -14 ga  

> with tips soldered) jumper to your roadside kit so you can drive  

> temporarily if the relay fails.  You must remove jumper every time  

> you shut down the engine however!

>

> Here's a link to Steve Nervig's site where you can see a photo of  

> the holder and jumper under 'fuel pressure gauge set-up'.  The write- 

> up is for an M103 but, should be the same detail for the M116/117  

> V-8 in your SEC I should think.  <http://web.mac.com/dakota/Mercedes/Projects.html 

> >

>

> -\Dick

> Beyersdoerfer wrote:

>>

>> Where are these pins 7&8?

>>

>> Mike Beyersdoerfer

>>

>> On Apr 10, 2009, at 6:40 AM, Darryl Kepler wrote:

>>

>>> I had the same issue with an 82, I jumped the relay as Marcus said  

>>> and still no fuel pump noise, turns out I had a loose wire at the  

>>> fuel pump from road debris.  Make sure when you jump 7&8 you hear  

>>> the pump running.

>>> Darryl Kepler

>>>

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

>>> ] On Behalf Of Markus Meyer

>>> Sent: Friday, April 10, 2009 8:26 AM

>>> To: Mercedes Coupes Mailing Lists

>>> Subject: Re: [W126 Coupe] 1986 560 sec died on road

>>>

>>> You need to figure out if there is a spark issue, fuel issue, or  

>>> something else.

>>>

>>> 1) what exactly is it doing?  is it cranking and trying to start,  

>>> meaning battery/electrics seem god, just not starting up?  or is  

>>> it not cranking either?  or a weak crank? (battery, starter, coil,  

>>> etc issue?)

>>> 2) try taking out the fuel pump relay and jumping the pins 7&8  

>>> with a wire, does the fuel pump hum/spin?  If so, try starting it  

>>> then.  If still not, try removing air cleaner and pouring some  

>>> starter fluid in there, see if it starts and dies after you stop  

>>> pouring fluid in - this indicates fuel issue

>>> 3) check for spark if fuel checks out okay

>>> 4) if all that checks out okay (good spark, fuel, etc) maybe  

>>> something like crank position sensor?

>>>

>>> Markus Meyer

>>> mfm at meyerprobateproperties.com

>>> www.meyerprobateproperties.com

>>> Meyer Probate & Properties, LLC

>>> 484-919-9762

>>>

>>>

>>>

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

>>> Subject: [W126 Coupe] 1986 560 sec died on road

>>> From: Neville Pearson <pearsonn51 at msn.com>

>>> Date: Fri, April 10, 2009 8:00 am

>>> To: <mbcoupes at mbcoupes.com>

>>>

>>> I'm new to mbcoupes. My 86 560 stalled out on road and would not  

>>> restart. Usually this is furl pump relay.  I had one on hand  

>>> changed and did no good.  Checked overload relay fuse it was good.  

>>> Checked rotor good.  Any ideas would be appreciated. Thanks,  

>>> Neville Pearson

>>> 1985 500 SEC, 1986 560 SEC, 1987 190 E, 1997 E420, 1997 S 500  

>>> Coupe, 1997 S 500 Sedan

>>> Rediscover Hotmail®: Now available on your iPhone or BlackBerry  

>>> Check it out.

>>> The MB Coupes Website!

>>> W126 SEC Mailing List

>>> 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.

>>

>>

>> The MB Coupes Website!

>> W126 SEC Mailing List

>> 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.


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