Many thanks for everyone's efforts. Figuring out the specs on these old Toyota lifts is not easy, glad I am doing it in advance of needing to order any parts. If I ever get a good set of docs compiled I will set up a web page with links for everyone.
According to Intella Parts the engine is supposed to be a 4Y or 5R, http://store.intellaliftparts.com/blog/decode-toyota-forklift-model-number/. But I guess it could be a 4P, kinda confusing..
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