G'day MF,
No, and maybe; the engine manufacturer was James N Kirby Products P/L, who also manufactured whitegoods, refrigeration components and other items.
The end of the war cleared the way for the formal incorporation of the business through James N. Kirby Holdings Pty Ltd on September 24, 1946. Priding itself on superior workmanship and loyalty to staff, the business began a complex transition to become a post-war manufacturer of consumer goods such as refrigerators. With Jim as mastermind, Crosley refrigerators and television sets, Bendix washing machines, Pye transistor radios and other household goods soon started rolling off the factory production lines.
Bio of JNK:
http://adb.anu.edu.au/biography/kirby-sir-james-norman-10749The 'Kirby Refrigeration' company still exists, though sold out of family ownership some time ago;
http://www.kirbyhvacr.com.au/about-us/history