<VV> Ignition Firing Order Comparison

Jim Houston jhouston001 at cfl.rr.com
Mon Sep 22 08:22:50 EDT 2008


When I was fooling around with Chevy inline 6 engines, the firing order 
was 1-5-3-6-2-4. These were '49 to '59 engines.  I don't know what the 
'61 and later ones used, but I think it was the same..     I remember my 
stepfather and one of his friends as a joke once switched the #3 and #4 
plug wires without my knowledge which produced a really rough running 
engine until I figured out what was wrong! 

Jim Houston
'65 Monza coupe

Charles Lee wrote:
> Looks like I have a "First Edition" 1965 Corvair Manual !
> Now if I only had Ed Cole autograph it !
>
> I wonder if there are any other changes I might need ?
>
> Does firing order '1-6-3-4-5-2 ' work for ANY car ?  It seems weird to
> me.
>
> Corvair's firing order makes sense : it makes two 'triangles' with the
> pistons.
>
> '1-6-3-4-5-2' just seems to skip around and doesn't distribute the load
> like the Corvair does.
>
> Here's a Comparison of the Corvair's correct Firing Order and the
> erroneous one :
> www.yourbuyersinn.com/FiringOrderComparison.JPG
>
>
> Here is a new, shorter link to the original GM diagram (that is wrong) :
>
> www.yourbuyersinn.com/CorvairManualErrors.jpg
>
> Does our historian have any ideas ?
>
> Thanks
> Charlie
>
> PS:
>
> The 'offending' plug wire and Firing Order diagram was scanned from an
> original 1965 GM manual.
> (It just has a 1964 copyright date.)
>
> CL
>
>
> -----Original Message-----
> From: Craig Nicol [mailto:nicolcs at aol.com] 
> Sent: Sunday, September 21, 2008 11:00 PM
> To: virtualvairs at corvair.org; chaz at ProperProPer.com
> Subject: RE: 1965 GM manual (page 6Y-19,Fig 8i) Spark Plug Wire
>
>
> Charlie asked: "Is this diagram correct ?
>
> This is from the GM manual (page 6Y-19, Fig 8i) for 1965 for spark plug
> wire placement, but it looks wrong ?
>
> http://www.yourbuyersinn.com/Cars/Corvair/CorvairManualPlugWirePlacement
> Errors.jpg
> What do you think ?
>
> Maybe this is an early edition of the manual before they corrected it ?
> Or am I looking at it upside-down or something ?
>
> Thanks for proofing it for me,
> Charlie"
>
> Craig replies:
> The picture you published is incorrect. I have two copies of the '65
> Manual. One was purchased with a 65 Corsa that I bought from its
> original owner and the other was purchased in 1972. Both copies have the
> same picture and it's correct in my manuals and both are different from
> the picture that you published. Your book must indeed be a very early
> copy that was corrected in later printings. 
>
> If your diagram were numbered 135 front to rear on the left and 246
> front to rear on the right, the distributor comes out right so we know
> the mistake the artist made! Craig
>
>
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