[W126 Coupe] Spark Plug Wires

[RICHARD JAFFE]

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!

--  

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"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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