The scrapyard I frequent collects equipment and items of interest and holds them for anyone that might be interested.
Today whilst getting a bit of material I noticed this engine. I don't know anything about it or how much it might be but it someone is interested then I can find out.
Yes a Petter PH1, 5hp, 1000rpm, or variable rpm, adjustable on the injector pump linkage unless it's got a hand throttle. Good old engines but bulky and heavy compared to modern 5hp engine.