Hello ODK members,

Here's a tale. I was looking at the first ads in this post -
when the Grasshopper was fitted with the Villiers Mk2 Midget engine.

I noticed that one 1952 ad. said, "Fitted with a British Villiers fan-cooled petrol engine."
Hello! That's odd: The Villiers Mk 2 had no fan or cowling . . .

I then thought of the dinky-toy fans, like Victa used above the engine cylinder on their 'Fan Mowers'.
Did Grasshopper use that sort of thing? No, the David Jones' ad. confirmed that was not the case. [above]

I then looked more closely at photos I had. Bingo! [see below]
Look at the crude fan above the drive pulley. The belt guard was cut out at the top to move air
upwards to the underside of the engine cylinder.

[Linked Image]

This arrangement - a primitive 4-bladed fan - was used on petrol machines
prior to the cowled J.A.P. motors that were introduced about 1954.
Electric machines had a full belt guard, without the cut-out at the top.

All very cool.
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JACK