Ken, Did you loose the coolant through an external leak ? Not through a leak in the head gasket ?
Coolant in the combustion chamber can do some very strange things. With EGT that low, one would not expect damage to a piston, but as been said, probe location can make a difference. Plus, when was the last time you calibrated your EGT gages ? Richard ----- Original Message ----- From: "dan hester" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, August 28, 2006 6:15 AM Subject: Re: [F500] Melted 494 piston question > I agree with chuck, if you lost coolant and the temp rose you would need > more fuel and it may have caused the lean condition, not the other way > around. > i used to jet my machine to run at 1250-1275 now i realize that might sound > real high but in 6 years of running it i only cooked the engine once, also i > am going to assume you were running somewhere in the 3/4 throttle range as > it is common for these engine to melt around that area rather than WOT, your > egts around that area are what you should be looking at > The only thing else i can suggest is ya dont take any advice from anyone > with 125 melted up pistons on a shelf :) > have a nice day > Dan > > - - - - STRING DELETED - - - - ________________________________ FormulaCar Magazine - A Proud Supporter of Formula 500 The Official Publication of Junior Formula Car Racing Subscribe Today! www.formulacarmag.com or 519-624-2003 _________________________________ _______________________________________________ F500 mailing list - [email protected] To unsubscribe or change options please visit: http://f500.org/mailman/listinfo/f500 *** Please, DO NOT send unsubscribe requests to the mailing list! ***
