Hello Claude Alright, the issue here is that Hurricane was both an engine maker and a mower maker. As you know, the Model 180 refers to the engine, not the mower.
I know that that tear-drop tank should be dated closer to the md-1960s, as Hurricane were using round tanks prior to that.
The second point is that many mower makers used their own handle-mounted fuel tank when they used Hurricane engines.
Given the colour (red/orange), and the info I have researched, the best I can say is that this engine was certainly used on Hurricane's own Silent 2 lawnmower.
Hope this helps. ----------------------------- Jack
