[W126 Coupe] Spark Plug Wires

Jim Nowak jjnowak_32503 at yahoo.com
Tue May 3 21:39:11 EDT 2005


There could be a crack in the distributor cap but the
most likely culprit is a bad plug wire.

  
--- RICHARD JAFFE <RSJAFFE at msn.com> wrote:
> Hello all,
> 
> I've got a similar problem as Dan. Low speed miss,
> especially on initial acceleration to about 10 mph
> and rough idle. These symptoms just developed last
> week. My German car mechanic buddy listened to the
> car and drove it. He says it is the plug wires. Do
> you concur?
> 
> Rich Jaffe
> 85 500 SEC Euro
> 94 SL500
> 01 Z06 Vette
> 
> ----- Original Message -----
> From: Dan Landiss
> Sent: Tuesday, May 03, 2005 4:04 PM
> To: MBCoupes
> Subject: [W126 Coupe] Spark Plug Wires
> 
> OK, I need about 8 or 10 opinions on this and I'm
> sure I'll get them all  
> here!
> 
> While installing new spark plugs to try to cure a
> low-speed miss (1991  
> 560SEC, 98,000 miles), I also measured the
> resistance of the spark plug  
> wires. One was about 1 kilohm, a couple were about 2
> k, a couple were  
> about 4 k, one was 12 k and and at least two were
> infinite (open  
> circuit). Sounds suspicious to me!
> 
> The distributor rotor is about 1200 ohms
> center-to-tip, and each spark  
> plug post around the distributor cap is about 1000
> ohms.
> 
> 1) What do you think the nominal resistance is of a
> "good" original  
> Bosch spark plug wire?
> 
> 2) What is the current favorite for replacements
> (stock engine and  
> ignition)?
> 
> 3) Do the advance weights in the stock distributor
> have only one spring?
> 
> Thanks!
> 
> --  
> 
> -----
> "He who joyfully marches to music in rank and file
> has already earned my contempt. He has been given a
> large brain by mistake, since for him the spinal
> cord would fully suffice." --Albert
> Einstein
> -----
> 
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