FWIW, I think Bill/Martin are both right unto themselves. LIke Bill said, it's the words used that are mismatched. Too often, detonation, pinging, knocking, & preignition are used interchangable to describe something wrong with the operation of the engine. Bill's talking about detonation, which is the same as KNOCK. Martin's talking about preignition, which is the same as pinging. Sometimes called "carbon knock" One happens when over advanced (ping), the other happens when too retarded (knock). Martin calls detonation "dieseling", which it very well may be. Spontaneous combustion would be more accurate, as dieseling implies there is no spark. A spark may occur and still have detonation. Jim ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/M=194081.4074964.5287182.1261774/D=egroupweb/S=170512 6215:HM/A=1706996/R=0/SIG=11p5b9ris/*http://www.ediets.com/start.cfm?code= 30509&media=atkins> click here <http://us.adserver.yahoo.com/l?M=194081.4074964.5287182.1261774/D=egroupm ail/S=:HM/A=1706996/rand=633941171> 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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