Sure you're not using terms backwards? Moving spark closer to TDC leads to pre-detonation. Old fashioned "power timing" (which I have to do to one of my high mileage Lincolns because outer ring of harmonic balancer has shifted) involves moving spark towards TDC until valves start to clatter, then advancing just a hair. Bill Robertson #5939 >--- In DMCForum@xxxxxxxxxxxxxxx, Martin Gutkowski <webmaster@xxxx> wrote: > No mate, you RETARD the spark to eliminate knocking/pinking. > > content22207 wrote: > > >Yep -- that's how you do it. Pre-ignition caused by mixture exploding > >before a spark hits it. Can eliminate by reducing volatility of > >mixture (higher octane), lowering chamber temp (cooler plugs) or > >moving spark farther from TDC. Unfortunately last method also cuts > >down on power. > > > >Bill Robertson > >#5939 > > > > > > Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/M=194081.4074964.5287182.1261774/D=egroupweb/S=170512 6215:HM/A=1754016/R=0/SIG=11pv1u2ju/*http://www.ediets.com/start.cfm?code= 30529&media=atkins> click here <http://us.adserver.yahoo.com/l?M=194081.4074964.5287182.1261774/D=egroupm ail/S=:HM/A=1754016/rand=886888180> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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