Richard, Basically, it turned out to be a top end job after the pto piston shed most of one skirt due to overheating last August at Hallett(see Photo Gallery page of kirklandracing.com for a pic). The crankcase was cracked open and the crank proved to be OK. I'm amazed that the pto cylinder has 140 psi of compression after ONLY honing the bores. Tough little motor.
Kenneth --- Richard Schmidt <[EMAIL PROTECTED]> wrote: > Ken, > > How much was "rebuilt" ? Crankcase split ? > Flywheel removed ? or just a > top end rebuild ? > > Richard > > ----- Original Message ----- > From: "Kenneth Kirkland" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Sunday, February 18, 2007 6:48 PM > Subject: [F500] Re-firing rebuilt 494 > > > > Hello all! > > > > I'd like to bounce a situation off the list as I > > attempt to start my rebuilt 494 that I've bolted > back > > into my KBS. > > > > The situation: > > -140 psi compression on both cylinders > > -spark at both plugs > > -40:1 premix in a spare tank that is getting > pumped to > > the carbs > > -idle air mix screws set per the SkiDoo manual > (seat > > screw and then back out 1.5 turns) > > > > I'm assuming proper timing on the rotary valve and > the > > magneto firing. > > > > The engine has refused to fire after 300 pulls on > the > > starter cord (it's a total body workout!). It > feels > > like some combustion is helping on some of the > pulls, > > but it's not firing or attempting to catch and > run. > > > > Are there other things that I need to check or do? > > > > Thanks for any and all assistance, > > Kenneth Kirkland > > #18MiDiv / Arkansas Region(77) > > 1991 KBS Mk. V > > www.kirklandracing.com > ________________________________ > 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! *** ________________________________ 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! ***
