I have a 40hp Mariner 2 stroke 4cyl. (1990) outboard. I wanted to replace the impeller today, but when I went to lift the engine, the hydrolics wouldn't work. I spent all day side-tracked on this new problem. I charged the battery and finally had it tested at WalMart. The one fuss in the...
I just acquired a fishing boat with a 40hp Mariner engine. No water is coming out for cooling. From what I have been reading, it sounds like I need a new impeller. Is this correct? How hard is it to replace? The serial number is: OC225579(US made). What year is this engine? Thanks!