 4G63 Cylinder Numbers/Firing Order |
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 May 25 2006, 06:42 AM
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#1
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 Post Master  Group: Members Posts: 986 Joined: 7-July 04 From: Central Illinois Member No.: 318  |
What are they?
Thanks. -------------------- ... she likes bein' forced ...
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May 25 2006, 07:19 AM
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#2
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 Eats and sleeps DSM jargin. Group: Members Posts: 1,754 Joined: 25-June 04 From: 61554 Member No.: 314 |
is this for the EVO??
-------------------- ┌∩┐(◣_◢)┌∩┐
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May 25 2006, 08:04 AM
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#3
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Post Master Group: Members Posts: 986 Joined: 7-July 04 From: Central Illinois Member No.: 318 |
Yes, thank you.
-------------------- ... she likes bein' forced ...
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May 25 2006, 10:00 AM
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#4
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
DSM's are 4123 I belive...
-------------------- The fastest car I own is a minivan....
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May 25 2006, 11:18 AM
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#5
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 Zen Master DSM Group: Moderators Posts: 3,008 Joined: 10-January 01 From: in front of you Member No.: 5 |
QUOTE (AWD DSM 1 @ May 25 2006, 10:00 AM) DSM's are 4123 I belive... That's the coil plug wire order, but I don't think that necessarily translates to firing order. I don't think you'd want to fire 1 right after 4 and 3 right after 2 since they are two strokes away from each other. (cyl 1 on compression when cyl 4 is on exhaust, vice versa, same with cyl 2 and cyl 3.) If cyl 1 is the theoretical first to fire, the next should be cyl 2 or cyl 3, whichever one is on the compression stroke rather than the exhaust stroke. Then cyl 4 should fire, then either 2 or 3 (whichever one hasn't fired yet). If I had to guess, I'd say the firing order is 1-3-4-2 or 4-2-1-3. |
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May 25 2006, 11:51 AM
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#6
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
I thought that since there are only 2 coils, they fired 1 and 4, and 2 and 3 at the same time. And yes, this would mean that one cylinder would fire on the exhaust stroke. I think you can actually swap the plug wires around and the car will still run fine.
I assumed Kazz was trying to install some plug wires. -------------------- The fastest car I own is a minivan....
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May 25 2006, 12:02 PM
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#7
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Post Master Group: Members Posts: 986 Joined: 7-July 04 From: Central Illinois Member No.: 318 |
Strictly an educational opportunity. And, frankly, it looks like we all can take advantage of it ...
-------------------- ... she likes bein' forced ...
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May 25 2006, 12:34 PM
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#8
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 Post Master Group: Members Posts: 908 Joined: 7-October 03 From: Chillicothe, IL Member No.: 182 |
I had always been told it was 1342. Like Nate said, it would have to be one of those two combonations.
-------------------- GVR4 866/1000 = the perpetually broken car
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May 25 2006, 12:46 PM
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#9
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Zen Master DSM Group: Moderators Posts: 3,008 Joined: 10-January 01 From: in front of you Member No.: 5 |
QUOTE (AWD DSM 1 @ May 25 2006, 11:51 AM) I thought that since there are only 2 coils, they fired 1 and 4, and 2 and 3 at the same time. And yes, this would mean that one cylinder would fire on the exhaust stroke. I think you can actually swap the plug wires around and the car will still run fine. I assumed Kazz was trying to install some plug wires. Gotcha. When I think of firing order, I think in terms of combustion since combustion is only happening in one cylinder at a time, but to each his own. 
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May 25 2006, 12:50 PM
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#10
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Post Master Group: Members Posts: 986 Joined: 7-July 04 From: Central Illinois Member No.: 318 |
And are they numbered 1 thru 4 left to right? right to left? (Evo vs. others, here, of course)
-------------------- ... she likes bein' forced ...
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May 25 2006, 01:07 PM
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#11
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
#1 is typically the closest to the timing belt, or "front" of the motor.
-------------------- The fastest car I own is a minivan....
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