Under GEAR HOUSING (DRIVE SHAFT), you will see item 40 which is the driveshaft from the engine to the Lower Unit. The splines at the top of the shaft are connected to splines in the crankshaft so whenever the engine is turning the impeller is also turning. Whichever gear it is in makes no difference.
Hi there How many anodes are on my engine in total I have replaced the one that is also the trim but someone has said there may be more inside the engine. If so how many and where are they.