Ideal engine

Hi All, I have been lucky to acquire a Ideal engine. There appears to be a number of missing parts. Is there anybody out there who could help with photos or information of this engine? Thanks.  [You must be registered and logged in to see this image.]

Any help?

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Hardy and Padmore. No port / valve housing on the top of the cylinder so not the style 1 (Loyal cycle) version of the GEM article Steve linked to, but probably a style 2 (conventional Otto cycle) with the chain driven overhead cam - has it got a sprocket inboard of the flywheel?

Great find!

Thought I had a pic of the exact type but can only find this larger example of the range seen at the '1000' engine rally a few years ago. Full crankshaft and twin flywheels, but similar valve gear.

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Hi nickh, yes it does have the inboard sprocket.