Cylinder Numbering on Coils - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-03-2008, 04:54 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2008
Location: Memphis, TN
Posts: 281
Thanks: 0
Thanked 0 Times in 0 Posts
93RedSled-SSE is on a distinguished road
Default Cylinder Numbering on Coils

Does the cylinder numbering on the 3 coils vary? I hope I can explain this where it makes sens.
I think my OE coil pack had a misprint on the center 2-5 coil, compared to those in one of the pix at this thread:
http://www.bonnevilleclub.com/forum/...057001#1057001
Quick background: My OE coils had 1-2-3 for the front terminal of the coils and 4-5-6 on rears. (white numbers). They were/are paired just like everything else I see here. When I was troubleshooting a problem, I noticed I had installed the wires backwards (according to the white numbers) on the center 2-5 coil when I replaced the OE wires a year ago (one at a time, just like it came from the factory). So, I swapped those two wires, so #2 was on the front and #5 was on the back. After swapping the terminals during my weeks of problem chasing, that center coil failed, probably just a coincidence.

Now, I see a pix in my FSM that shows the center 2-5 coil numbered like those in the above thread, backwards from mine. This may sound petty, but I read up on the forward current on one plug while the other is backward current and how it takes more to fire in backward current and all. Am wondering if I might kill my replacement coil with them not agreeing with pictures...
I feel stupid asking, but if they are all numbered the same, I probably need to swap my 2-5 wires. Thanks
93RedSled-SSE is offline   Reply With Quote
Old 04-03-2008, 04:57 PM   #2
Senior Member
True Car Nut
 
Join Date: Jan 2005
Location: Montevideo, MN MWBF '05, '06, '07 WCBF '06 '07 survivor
Posts: 3,882
Thanks: 0
Thanked 0 Times in 0 Posts
sonoma_zr2 is on a distinguished road
Default

it actually doesn't matter if you swap the plug wires on each coil
sonoma_zr2 is offline   Reply With Quote
Old 04-03-2008, 04:57 PM   #3
Junior Member
 
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road
Default

Hook them up like this
Name:  plugwires.jpg
Views: 3
Size:  73.9 KB
harofreak00 is offline   Reply With Quote
Old 04-03-2008, 05:11 PM   #4
Senior Member
Posts like a Turbo
 
Join Date: Oct 2006
Location: Whitewater, Wisconsin
Posts: 319
Thanks: 0
Thanked 0 Times in 0 Posts
nicklikesmilk is on a distinguished road
Default

i thought our coils fired both spark plugs on the same coil at the same time, even though it only fires one actual cylinder in the motor, the other just sparks into some exhaust gases, which they call waste spark ignition system. so then i guess switching #2 and #5 wouldn't hurt anything, same with 1 and 4, and 3-6
nicklikesmilk is offline   Reply With Quote
Old 04-03-2008, 05:18 PM   #5
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2008
Location: Memphis, TN
Posts: 281
Thanks: 0
Thanked 0 Times in 0 Posts
93RedSled-SSE is on a distinguished road
Default

Thanks! Yup, my 2 & 5 are backwards. Appreciate the fast replies!
93RedSled-SSE is offline   Reply With Quote
Old 04-03-2008, 05:21 PM   #6
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

The CAN'T be backwards. They fire at the same time, every time. Swap 2 and 5, 3 and 6, or 1 and 4 and it doesn't matter at all.

We use a waste-spark ignition system.
willwren is offline   Reply With Quote
Old 04-03-2008, 05:34 PM   #7
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2008
Location: Memphis, TN
Posts: 281
Thanks: 0
Thanked 0 Times in 0 Posts
93RedSled-SSE is on a distinguished road
Default

After reading the theory page for the 4th time, I caught that polarity is fixed.. one plug always gets forward current and the other gets backwards current. And they make up for that in the coil. But "I wanna be like all the other kids." So will make it look like Harofreak'* picture, but without all that other neat stuff.
Thanks again.
93RedSled-SSE is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Numbering of DLC Lilchief 1992-1999 1 10-09-2004 02:11 PM
Shortened Coils Springs... dark_pawn86 1987-1991 2 05-21-2003 09:18 AM
MSD or Stock Ignition Coils parallelcircuits Performance, Brainstorming & Tuning 22 05-18-2003 03:02 AM
MSD Coils / Ignition? SSEi95 Performance, Brainstorming & Tuning 18 03-27-2003 12:59 PM
MSD Coils are in! Allmachtige Performance, Brainstorming & Tuning 5 12-30-2002 02:33 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:10 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.