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Early vs. Late 32v Spark Plug wires - is there a difference?

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Old 07-22-2016 | 08:40 PM
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Default Early vs. Late 32v Spark Plug wires - is there a difference?

Sorry I have a bit of a problem

I purchased a set of plug wires from a 928 vendor and they arrived today. I'm super excited since I wanted to get the car back on the road, but the plug wires don't fit.

The wire holder routing is all wrong, and the #4 and #8 wires are MUCH shorter than the ones I took off. It got me to think if the wires changed between the '85/'86 and '86.5 + 32 v motors. There was no option to make that distinction on their site as it said "all 32v motors 85+"

If they are different, is there a way to make them work? Do I need a whole new set or can I get just the wires that are wrong?

I would like to get the car running this weekend, but now I'm stuck if I can't make these work.

Thanks!
Old 07-22-2016 | 08:46 PM
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Then put the old wires back and swap it when you have this sorted out.
Old 07-22-2016 | 08:48 PM
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No go. Old wires are no good
Old 07-22-2016 | 08:57 PM
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All I can say is to start swapping the wires around until they all fit with the proper length. I'm not sure of any differences. Maybe one of the big 3 can chime in.
Old 07-22-2016 | 09:39 PM
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'85/'86 wires are longer, route differently, and attach differently than '87-'95.

The "all 32v motors '85+" is incorrect.
Old 07-22-2016 | 09:42 PM
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There is no difference at all between 85,86,86.5 ignition wires, the all route the same and are attached to the fuel rails and go down over the cam covers and snap into the plastic hooks then on the spark plugs.

The '87 S4 and newer have a different routing and do not attach to the Fuel rails, are you sure you have 85/86 wires?
Old 07-22-2016 | 09:57 PM
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#8 wire SB 39 inches
#4 wire SB 38 inches

NOTE # 4 plug is at the back of the right side cylinder head
and 8 is at the back of the driver side cylinder head
Old 07-23-2016 | 12:27 AM
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Had the same issue with my leads and vendor sent correct 86.5 leads. Go back to vendor.
Old 07-23-2016 | 03:05 AM
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Ugh. This sucks. Was having my MAF 2nd day air to get here by Sat so I could drive the car this weekend. Fudge.
Old 07-23-2016 | 09:43 AM
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They should be long enough to reach, even if they are not properly routed. This should get you going until you settle this with the vendor.
Old 07-23-2016 | 11:48 AM
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Coil wires are different at entry to coils. Important.
Old 07-23-2016 | 02:35 PM
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Man I'm just so bummed. Wanted to get the car running this weekend, but don't want to install a set of expensive wires only to find out I can't return them later. I measured the lengths of the two sets hoping it was only the #4 / #8 wires that were too short, turns out there are more differences than that.

Early 32v
#1 19 - #5 22
#2 38 - #6 40
#3 47 - #7 48
#4 38 - #8 39

Late 32v
#1 19.5 - #5 19
#2 37 - #6 39
#3 43 - #7 41.5
#4 25 - #8 25

So really only 3 of the wires will work with the original routing. This stinks...
Old 07-23-2016 | 08:19 PM
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Originally Posted by corellian vette
Man I'm just so bummed. Wanted to get the car running this weekend, but don't want to install a set of expensive wires only to find out I can't return them later. I measured the lengths of the two sets hoping it was only the #4 / #8 wires that were too short, turns out there are more differences than that.

Early 32v
#1 19 - #5 22
#2 38 - #6 40
#3 47 - #7 48
#4 38 - #8 39

Late 32v
#1 19.5 - #5 19
#2 37 - #6 39
#3 43 - #7 41.5
#4 25 - #8 25

So really only 3 of the wires will work with the original routing. This stinks...

You will get used to it....this is a minor problem, in the "928 world".

By the time you have the car done, you won't even remember this tiny bump.
Old 07-23-2016 | 08:27 PM
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Originally Posted by GregBBRD
You will get used to it....this is a minor problem, in the "928 world".

By the time you have the car done, you won't even remember this tiny bump.
This x 1000
Old 07-24-2016 | 01:00 PM
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I have the original (both) wire ends for my 86.5 with 70,000 miles on them if this would help. I can deliver them within 45 minutes as I am always looking for a reason to drive.
Thomas



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