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Experience w/Denso ignition wires, 85-86?

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Old 04-17-2013, 08:37 PM
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Default Experience w/Denso ignition wires, 85-86?

Anyone have experience with the Denso plug wires on an 85-86? My Berus are cracked and I'm going to replace them, looking for a new set that's numbered by cylinder. I asked the Pelican guys if the Karlyn wires were numbered and got "we don't know" so I'm shopping around.
Old 04-17-2013, 08:57 PM
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Mrmerlin
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Best bet get another set of Berus for some reason fitting less expensive wire sets usually results in failed wires after a short while,BTDT

NOTE the originals may be still working sort of, and 25 years old,
that ought to tell you something, of course the new wires have better materials
Old 04-17-2013, 10:47 PM
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Lizard928
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If you don't care about the numbering I have a new set made locally.
8.5mm leads of really good quality for $200.
This gets you from distributor cap to spark plug.
Old 04-18-2013, 06:59 PM
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The Karlyn wires are numbered.
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Old 04-18-2013, 07:41 PM
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Originally Posted by Mrmerlin
Best bet get another set of Berus for some reason fitting less expensive wire sets usually results in failed wires after a short while,BTDT

NOTE the originals may be still working sort of, and 25 years old,
that ought to tell you something, of course the new wires have better materials
The original wires all measure 4K ohms, which I think is a bit high but at least they're consistent. It's a WYIT project as much as a cosmetic one. The rubber shielding on the outside of the Berus have cracked and frankly look like an accident waiting to happen.
Old 04-18-2013, 07:43 PM
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Originally Posted by PelicanParts.com
The Karlyn wires are numbered.
Thanks. That makes a big difference.
Old 04-18-2013, 08:51 PM
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dr bob
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Scott--

The resistors are in the plug ends, the wires themselves are not resistors. So the wires should read the same resistance/Ohms regardless of length. Spark plug cable "failure" is all about insulation breakdown, then end connection failure is next, with flex/breakage of conductors last. The common recommendation is to look at the running engine it almost total darkness, and maybe lightly fog some water over the wires with a spray bottle. Tap water. If you start to see signs of low-flying lightning storms in your mist, it's new wires time. Of course if there's any obvious checking or cracking on the insulation, no need for the other test.
Old 04-18-2013, 08:56 PM
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From your thoughts about the numbers being on the wires,
it is not hard to figure out the proper wire layout.

However for a first timer it may be somewhat daunting.

That said there are plenty of diagrams for the wires.

The #1 wire is on the right hand front of the engine and #4 is on the rear righthand side .

the left side of the engine has #5 through 8

this is all as if you were sitting in the car
Old 04-18-2013, 10:33 PM
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Originally Posted by Mrmerlin
From your thoughts about the numbers being on the wires,
it is not hard to figure out the proper wire layout.

However for a first timer it may be somewhat daunting.

That said there are plenty of diagrams for the wires.

The #1 wire is on the right hand front of the engine and #4 is on the rear righthand side .

the left side of the engine has #5 through 8

this is all as if you were sitting in the car
Stan - It's not routing the wires I care about so much since I have the existing Berus in a box and they're all numbered. All I'd need to do to re-wire quickly would be match lengths.

The reason I like numbered wires is for troubleshooting. It's nice to be able to pull off plug wires or distributor wires without having to put tape on them. It's a "daily convenience" sort of feature.
Old 04-18-2013, 10:48 PM
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Originally Posted by dr bob
Scott--
The resistors are in the plug ends, the wires themselves are not resistors. So the wires should read the same resistance/Ohms regardless of length. Spark plug cable "failure" is all about insulation breakdown, then end connection failure is next, with flex/breakage of conductors last. The common recommendation is to look at the running engine it almost total darkness, and maybe lightly fog some water over the wires with a spray bottle. Tap water. If you start to see signs of low-flying lightning storms in your mist, it's new wires time. Of course if there's any obvious checking or cracking on the insulation, no need for the other test.
Now I wish I hadn't already pulled the Berus, sounds like I missed an interesting light show! Crank up the Loggins & Messina, spray a little light fog over the engine and have a party!

Unfortunately, the insulators on mine are all cracked so I just looked at them and said "Oh well". Great test though. Thanks.



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