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Old 11-20-2002, 03:43   #1 (permalink)
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Question Spark plugs leads

How many ks should you do before you replace the spark plugs leads because I am doing a service on my car The leads cost $97 for a V8 do I need to replace then it a 94 EF whit 11000 ks on the clock
.So how many ks do you do before you replace then?
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Old 11-20-2002, 03:52   #2 (permalink)
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Atleast by now.You will probably notice a difference..For the price its cheap insurance to know they are in good nick, fuel filter same... imo...
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Old 11-20-2002, 04:26   #3 (permalink)
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I agree, replace them anyway, you know where ya stand then.

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Old 11-20-2002, 10:17   #4 (permalink)
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That's Ok if you got a spare $97, otherwise just test the resistance of each plug wire. An auto elec can do this in a couple of minutes.
Wire spec: 16k ohms per metre (+ or - 6k ohms)

Cyl> Resistance(Kilohms)
1 > 5-11
2 > 6-12
3 > 7-15
4 > 8-11
5 > 5-11
6 > 7-15
7 > 9-17
8 > 9-17
Coil > 1-5
[> is just a separator, doesn't mean greater than]

(This is for V8's only, 6's are a lot higher)
My V8 has 220k's with original plug wires, no problems.

Or you can buy a digital multimeter for about $20 and do it yourself, and the multimeter is handy for checking other elect stuff on the car, a good investment.

Cheers
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Old 11-22-2002, 01:55   #5 (permalink)
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yeah i had factory leads on my EBII till a couple of weeks ago.. they were okay, but i wanted to know that they were good(and new)

195 on the clock.

i'm told leads turn to shat after five years or so..
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Old 02-04-2004, 00:10   #6 (permalink)
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Re: Spark plugs leads

whats a set worth for an I6 (EBII)

and how the hell do you get under the intake manafold lol
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Old 02-04-2004, 04:34   #7 (permalink)
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Re: Spark plugs leads

take the air snorkel off and you can access the distributer from the side, its still a bit of a squeeze though.
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Old 02-04-2004, 04:39   #8 (permalink)
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Re: Spark plugs leads

Get some quality magnetic induced Eagle leads they are rated at 700 ohms per foot or metre and were 77 dollars a set for a six, whereas my spiral wound ferite core Top Gun Pro Racing Leads at 125 bucks are 2000 ohm and I though taht was good.

simple get the Eagles, but make sure they are the 10/10.5 mm spiral wound magnetic induced ones and it will still end up cheaper than Ford parts most likely, with the benefit of getting 20 times better leads, that are nice and fat, worth at least 15 ricerwatts, lol
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Old 02-04-2004, 12:42   #9 (permalink)
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Re: Spark plugs leads

I agree with TopGhia... Get the resistance checked and if they are ok don't bother changing them unless you want to buy leads for their appearance.. You are not going to improve the power or your fuel consumption....
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Old 02-04-2004, 13:28   #10 (permalink)
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Re: Spark plugs leads

They are pretty Shagged, they have arced out on the rocker cover. They still look like the original Ford Motorcraft ones. Deep Red Colour
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