[forw] Re: Ingition

[John S Gwynne]

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Subject: Re: Ingition
Date: Wed Mar 29 09:19 EST 1995

robert dingli wrote:
	
	Lastly, someone else asked about the hazards of the wasted spark approach.
	I remembered recently where I had heard of problems.  90 degree V6 engines
	with only three crank throws fire unevenly 90/150/90/... degrees apart.
	The wasted spark may fire while a combustable mixture is present in the
	out-of-phase cylinder.   I believe the ignition timing is compromised as
	a result.  Perhaps someone experienced with the Delco controlled Buick
	3800 V6, as used in local Holden Commodores, may care to comment.

perhaps the holdens are different, but north american buick v6s have
had split crank throws and even firing since the late '70s - shortly
after gm bought the tooling back from amc[jeep].
_______________________________________________________________________________
Andrew Hay
	    LIFE, n: A phenomenon that resists the second law of thermodynamics
adh at an.bradford.ma.us						---Schroedinger

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