Daihatsu engine question

[wuvvum]

The Innocenti's 300-odd mile blat to Bedfordshire and back a couple of weeks ago has left it sounding a bit more tappety than it used to, so I want to give it a full service before it gets put into hibernation. Do any of you Japanese car experts have anything that would give the valve clearances for the engine? It's a 659cc SOHC 2-valve triple. Ta ever so.

[oldford]

Have you got an engine code?, which Daihatsu models was it used in? and how old is the engine?