Hi I have just purchased a 18 ft larson with a 4.3 mercury engine. Stern drive is in excellent condition, engine is in a sorry state i would like to remove the engine to work on it through the winter. How to attack this is just a little unsure i will need to purchase a workshop manual that will cover this> But would like it to go into a little depth on every step, am i right in understanding that the stern drive must be removed first , so would the same manual cover that as well . I am very confident in engine rebuild etc but never in marine situations Thanks for all help mike