Hi there, being a complete novice in this field, I was just wondering if anyone can point me in the right direction. I have just become the current keeper of a fairly well used Ohlsson and Rice engine with water pump attached. Condition is not great so some remedial therapy is going to be required. I have seen some Identification codes on other posts but suspect partial dismantling will be required to get to a clear view of the crank case. So before starting to pull it down, can anyone confirm any of the following from the images: Model, approximate year of construction (I appreciate that pre 67 this is not easy but I am not even sure it is pre 67) whether the little pump and tank with what appears to be a premix plunger are original or modifications, availability of rebuild parts (which I suspect is like my pre 60’s Honda parts nice on impossible to get) Many thanks for your considerations. Cheers Rich