On an Alfa 4 cyl engine, wouldn't the gap opening be in the center no matter which way the plug faced? Since the plugs come down in the middle of the combustion chamber.
So obviously something else is meant. John Justus Alfa Romeo Enthusiast Date: Mon, 12 Jul 2010 13:03:47 EDT From: [email protected] Subject: Re: [alfa] Re: Spark plug indexing washers, how thick? I have a big valve head, so I have to index if I use the extended nose plugs. One of the things I've heard mentioned, is that indexing allows you to orient the electrode/gap so as to allow the best combustion. Agreeing that the orientation should be 180 dgrees off the oversize intake valve, left to my own devices, I would tend to put the open space toward the center of the combustion chamber. Does that make sense? Stevan Thomas 73 Berlina -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
