I got a Johnson 175 Hp today that was a early Christmas present from a friend who owns a marina.<br />The previous owner run it with a cracked lower unit, it locked up, and he went and bought a new engine.<br />I read that the shift rod must be removed to get the lower off, is this the 7/16 nut with a screw slot behind the lower carb?<br />The Model number is J175TLCSA, serial number is J5352388.<br />What year, and any bad info on this particular engine?<br />Thanks.!!!!