<VV> Ignition : Porsche vs. Corvair firing order ?

Thu Jul 8 05:35:05 EDT 2010

The cylinders aren't numbered the same. On a Corvair, the even ones are on one side, the odd ones are on the other side. On a Porsche, one side is 1,2,3, the other is 4,5,6. So, no consecutive firing cylinders on the same side. Would be rough as a cob if they did! 

John Roberts

-----Original Message-----
From: Charles Lee <Chaz at ProperProper.com>
To: jvhroberts at aol.com
Cc: Virtual Vairs <virtualvairs at corvair.org>
Sent: Wed, Jul 7, 2010 8:50 pm
Subject: Re: <VV> Ignition : Porsche vs. Corvair firing order ?

OK, but it seems that using "1, 6, 2, 4, 3, 5" the "6, 2" and "3, 5" are consecutive on the same side of the engine ?

Am I missing something ?  (Cylinders are numbered the same, right ?)

Charlie

----- Original Message ----- 

From:   jvhroberts at aol.com 

To: Chaz at ProperProper.com 

Cc: virtualvairs at corvair.org 

Sent: Wednesday, July 07, 2010 5:36   PM

Subject: Re: <VV> Ignition :   Porsche vs. Corvair firing order

Actually, untrue. Both engines   fire the same way, except one may be backwards from the other. 

Both   engine fire left-right-left-right-left-right.
Both engines fire up (or   down) each bank. 
Both engines fire opposing cylinders 180 degrees apart on   the distributor. 

As I said, there are only two possible firing orders   for flat 6s, and one is the reverse of the other. The fact that these engines   have 4 corner cylinders and only 2 center cylinders doesn't really enter into   it. These are both even firing inline 3 cylinder engines out of phase by 60   degrees distributor rotation. 

Any other firing order or crankpin   arrangement makes for one rough running sumbitch! Ask Buick about their early   V6s! 

John Roberts

-----Original   Message-----
From: Charles Lee <Chaz at ProperProper.com>
To:   jvhroberts at aol.com
Cc: Virtual Vairs   <virtualvairs at corvair.org>
Sent: Wed, Jul 7, 2010 8:27 pm
Subject:   Re: <VV> Ignition : Porsche vs. Corvair firing order

Hmmm... Thanks for the info -

Porsche doesn't seem to be as well-balanced in   its firing order as the Vair, being "corner, corner, corner, middle, corner,   corner," as opposed to the Corvair's "corner, middle, corner, corner, middle,   corner" ? 

Corvair looks like a good doubles tennis game   than does the Porsche, but I guess there is something to it on the order of   "form follows function" ?

Charlie

----- Original Message ----- 

From: jvhroberts at aol.com 

To: Chaz at ProperProper.com ; gojoe283 at yahoo.com ; virtualvairs at corvair.org 

Sent: Wednesday, July 07, 2010 5:13     PM

Subject: Re: <VV> Help! Ignition     Messed UP - help proff-reading my links to Corvair ignition wiring ?

Assuming the cylinders are     numbered the same, on any horizontally opposed 6 cylinder engine, there are     only 2 possible firing orders, one being the reverse of the other.     

For a 911, here's the cylinder numbering:
http://www.pelicanparts.com/techarticles/911_valve_adjust/911_valve_adjust_pic1.jpg
And     the firing order is 1, 6, 2, 4, 3, 5.     

John Roberts

-----Original Message-----
From: Charles Lee <Chaz at ProperProper.com>
To:     Bill H. <gojoe283 at yahoo.com>;     virtualvairs at corvair.org
Sent:     Wed, Jul 7, 2010 3:29 pm
Subject: Re: <VV> Help! Ignition Messed UP     - help proff-reading my links to Corvair ignition wiring     ?

Right !

If you're used to inline-6 engines, that would have made sense, but not on 

Corvair !

Does Porsche use the same firing order ?

I makes more sense when the viewed from above:

http://www.yourbuyersinn.com/Cars/Corvair/FiringOrderComparison.htm

In this one I colorized the hard to follow in black-and-white manual 

drawings :

http://www.yourbuyersinn.com/Cars/Corvair/1965CorvairManual6Y-19.htm

Here I tried to put it all together a while back to see ignition, starter, 

etc all in one place :

http://www.yourbuyersinn.com/Cars/Corvair/CorvairIgnitionWiring.htm

I'd really appreciate it if you guys could proof read it for me to make sure 

it's right ?

It was pulled apart when I first did it, but maybe it needs to be updated ?

Hope it helps and thanks for any input you can afford me !

Charlie

----- Original Message ----- 

From: "Bill H." <gojoe283 at yahoo.com>

To: <virtualvairs at corvair.org>

Sent: Wednesday, July 07, 2010 9:39 AM

Subject: <VV> Help! Ignition Messed UP - Case of the Absent-Minded 

Professor,or ADD-afflicted Enthusiast

 B"H

I'd like to thank the great folks who responded to my ignition problem. One

thing I neglected, makes me embarrassed, but...

The left bank of cylinders turns out to be 2-4-6, NOT!!! 4-5-6. And the 

right

side is 1-3-5, NOT!!! 1-2-3...

You'd think it's pretty obvious, since the info is stamped on top of the 

turkey

roaster....

Lesson learned. Sometimes it's the simple things that you can slip up when

doing a complex task. As I was scratching my head looking at the engine bay, 

it

suddenly hit me. I re-did the wires, and she started up the first time...

Imagine installing A/C in, around, and under the car when it's 100 degrees

outside. There some sort of irony there...

Bill Hershkowitz 69 Monza 110 PG

> Hi all...I'm in the middle of installing A/C in my car, and so far, 

> everything

>that can go wrong, has gone wrong!

>

> Now somehow I messed up my plug wires and ignition wires. There is an

>insulated "resistor" wire, that goes on one side of the coil. Then I see a

>yellowish-gold wire, it came loose from its terminal and I can't figure out

>where this wire goes, but it looks like another ignition wire. Doesn't that 

>go

>on the coil also?

>

> Also, what's the best and easiest way to determine how to put the 

> distributor

>wires back correctly? I have the firing order right, and I've gotten the 

>notch

>on the vibration damper pulley within the timing scale on the block, but 

>I've

>tried to put both #1 and #2 wires at the terinal where the rotor's 

>pointing.

>The car backfires and almost starts, but won't.

>

> Help! And thanks everyone. Hope you're all having a great Forth!

>

> Bill Hershkowitz 69 Monza 110 PG

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