[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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