602 Blues

[DaveP]

any tricks to lean out these gas burners? i have one that i cant seem to get lean enough to keep the plugs from fouling. reset the float and tried the mixture adjustment screws. i dont really plan on using this thing much just want it to run if needed.

 

[OSO]

Oso here , check on page 3 of 5ton forum.You will find out about spark plugs. Brad a fellow I met suggests using Champion UJ12Y plugs . Then installing Packard 440 plug wires , remove old water proof wires and make up new wires and the distributor wire ends will fit where old water proof wires threaded on to the cap. Advance timing after engine is hot just till it starts to buck a little, back off a little . Then check where your timing light shows Brad also mentions to drill out the jets a little larger to make up for the alcohol in the fuel nowadays. I haven't done anything with the carb as of yet.

 

[acetomatoco]

The replacement Zenith carbs seem to be a little better at leaning out than the original Holleys. Also remember to advance the timing some to compensate for the improved gasoline octane since 1950... remember they were designed for MoGas.. and you can run a little hotter plug... the 2245s are hotter than the 2243s.. If you are using the civvy plugs, the J11s are hotter than the J8s...