[W126 Coupe] Spark Plug Gap

[Jonathan]

Bill,

Go out to your local McParts and order up a set of NGK BP6ES's, gap the 
to .042, add some anti seize, torque them to about 12-14lbs and you'll 
be set.

Jonathan

Bill Reford wrote:

> Hi All,

>  

> When replacing the timing chain on my 1990 560 (170,000 KM) or 

> (104,000 Miles), I encountered the following:

>  

> The existing NGK plugs have an "R" in the part #  (resistor I presume) 

> earlier talk suggested that due the extra resistance that these plugs 

> add to the ignition circuit, they should not be used.

>  

> Mercedes Canada cannot get/sell me Bosch W9DCO's, (I believe that 

> these are the proper plugs for my car)

>  

> Also the gap ranged from .032 to .055

>  

> What solutions (including proper gap) would the group recommend instead.

>  

> Thanks in advance

>  

> Bill Reford

>  

> 1990 560 SEL

> 1985 500 SEC Euro.

> ------------------------------------------------------------------------

>

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1996 S600 Euro "Scharnhorst"
1991 560 SEC Full Euro ECE (for sale)
1991 560 SEC 226Hp/271ft/lbs (TT conversion IP)
1988 300 TE
1989 560 SEC AMG (Mech.lifter/radical cam conv.)
1986 560 SEL 6.0L 32V AMG
1980 280 SE Euro
2006 Z4 3.0Si M-Spec

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