I recently purchased the oil pump rebuild kit from Rootes Part Service Holland for the 1592 engine. Does anyone know of a reputable shop that is familiar with rebuilding these? I'm told that the pump can be removed from the engine while in the car (remove the sump, etc.) Appears to be a straightforward process, but is it? I've been searching the forum and Sunbeam Youtube channel for videos and looking online for instructions but haven't found much. Did watch a video on how to measure the clearances on the shaft/rotor. The shaft in the kit has not been drilled to accept the dowel pin to attach to the gear. From what I've watched, clearances are critical. My plan is to remove the pump and send it off, then reinstall. Comments? Suggestions? Thanks in advance.