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  #1  
Old 03-21-2003, 03:12 AM
afmcorp's Avatar
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Location: NW Indiana LaPorte
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420sel ignition wire resistance

hello

made a search on this but couldn't find anything on this topic.

is there or has anyone ever established the resistance reading of a plug wire. i'd like to check my wires but i haven't found a simple reading for this. i've seen in the book of 700 to 1300 but it does not say plug wire.

just wondering

tks for the help
craig
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Craig

1972 350sl Red/Blk 117k
1988 420sel charcoal/Blk 140k
1987 420sel gold/tan 128k
See My Cars at:http://mysite.verizon.net/res0aytj/index.html

Pound it to fit then Paint it to match!

There is only First Place and Varying degrees of last!

Old age and deceit will overcome Youth and Enthusiasm every time!

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  #2  
Old 03-21-2003, 08:44 AM
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Join Date: Mar 2000
Location: Gainesville FL
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Like most other German cars, MB uses real copper wire for their plug wires. Theoretically it should give "zero" resistance.

For radio suppression and to elevate the idle firing voltages resistance is added at the ends of the wire and in the distributor rotor. The wire ends are usually 1000ohms but some of the earlier cars had 5000 ohms on the plug end. I think all the distributor ends are 1kohm. The sparkplug connectors say what their resistance is.

So for most cars a plug wire should be 2k ohms.
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Continental Imports
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  #3  
Old 03-21-2003, 01:43 PM
afmcorp's Avatar
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Join Date: Jan 2002
Location: NW Indiana LaPorte
Posts: 571
steve

thanks much for your quick reply. i appreciate your knowledge and your willingness to share.

thks
craig
__________________
Thanks Much!
Craig

1972 350sl Red/Blk 117k
1988 420sel charcoal/Blk 140k
1987 420sel gold/tan 128k
See My Cars at:http://mysite.verizon.net/res0aytj/index.html

Pound it to fit then Paint it to match!

There is only First Place and Varying degrees of last!

Old age and deceit will overcome Youth and Enthusiasm every time!

Putting the square peg in the round hole is not hard... IF you do it fast enough!

Old enough to know better but stupid enough to do it anyway!
Reply With Quote
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