engine fuel primers 1969 T337D

[cessna337d]

Used them to hand prop engines when I left the masters on and battery dead. Flew to a nearby airport that had a fog had battery charged enough.to start and get alternators on line. Went back and got my passengers. Remember if you have no voltage you have no gauges radios and electric fuel pump. The alternator restart would not work . With a dead battery no way to pull in master relay so battery stays insulated.