[W126 Coupe] Question re distributor vacuum connection

[Ian Gatenby]

My '81 has the single connection - it is the '83 that I'm looking at.  The
vacuum leads are broken and I will have to try to figure out what the
switching valve looks like.

Ian

-----Original Message-----
From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Dick Spellman
Sent: Wednesday, 17 May 2006 9:25 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Question re distributor vacuum connection

Hi Ian:

Which model year are you looking at, 81 or 83??? The early distributor 
vacuum diaphragms had the two vacuum lines that are connected through a 
switchover valve to the intake manifold. One for ignition advance and 
the other for ignition retard. The switching valve determines which one 
is active. Best to read up on the specifics to the model year in section 
15-502 of the manual. If you don't have the manual, try 
www.skinnerbox.steaky.org

Regards,
Dick

Ian Gatenby wrote:

> ------------------------------------------------------------------------
>
> *From:* mbcoupes-bounces at mbcoupes.com 
> [mailto:mbcoupes-bounces at mbcoupes.com] *On Behalf Of *Ian Gatenby
>
>
> *To:* Mercedes Coupes Mailing Lists
> *Subject:* Re: [W126 Coupe] Question re distributor vacuum connection
>
> I have three Mercedes 126's - an '81 500SE an '83 500SEC and an '87 560SEC
>
> Each has a different vacuum setup on the distributor. The distributor 
> I would like to understand has two vacuum leads into a device on the 
> side of the distributor - which is clearly for the ignition advance.
>
> The question is - where should each of these connections go - do they 
> both go into the intake vacuum connection - or to different sources?
>
> Thanks
>
> Ian
>
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