Livorice Posted June 17, 2022 Share Posted June 17, 2022 How do you set spark for starting. Also is there a switch on the dash to kill mag. Quote Link to comment https://www.bigmacktrucks.com/topic/69964-1927-ac/ Share on other sites More sharing options...
mrsmackpaul Posted June 17, 2022 Share Posted June 17, 2022 As in advance/retard ? Most things are retarded for a easier start and Im guessing that this is tge same Dunno about turning the maggie off on the dash Paul Quote Link to comment https://www.bigmacktrucks.com/topic/69964-1927-ac/#findComment-500503 Share on other sites More sharing options...
yarnall Posted June 18, 2022 Share Posted June 18, 2022 I AC is a fire truck and it has a switch in the dash for distributor, mag or both. The spark is in the left life of the steering wheel and I push it all the way up to start. My AB has only a mag but has been messed with and has a newer switch on the dash. The linkage for the spark and hand throttle are gone so I cannot adjust it. Mike Quote Link to comment https://www.bigmacktrucks.com/topic/69964-1927-ac/#findComment-500535 Share on other sites More sharing options...
1wonton Posted June 23, 2022 Share Posted June 23, 2022 The firing marks are on the flywheel, take off the inspection and you will find them. Otherwise place the timing lever in full retard, then just set #1 to fire on TDC (pull out the spark plug and notice the air rushing out. You can use a flashlight to thru the hole to determine when the piston id TDC). Then set the mag to fire about 30 degrees ahead of this position. It's not critical either way, just set to where it starts easily. Too far retarded and it will overheat, too far advanced it will try and kick back when you crank it. It's pretty safe if it does kick back, it won't kill you like a Model T. Quote Link to comment https://www.bigmacktrucks.com/topic/69964-1927-ac/#findComment-501102 Share on other sites More sharing options...
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