Reply To: KG7 Water pump replacement

[LLOYD LAUTNER]

I don’t recall that thrust washer being difficult to remove. I think it just slides off. But the plate under it with the two holes can be very difficult for several reasons. First of all you will need the special Mercury tool that engages the two holes so that you can unscrew the plate out of the hole to access the impeller. Second of all the plate has backwards threads on it, and that is critical!!!! Normal threads are “Righty Tighty” and “Lefty Loosey” but the threads on the plate and inside the gearcase are backwards to keep the plate on during prop shaft rotation. So if you try to unscrew the plate in the usual left hand direction it will just get tighter and make it even harder to unscrew the correct way. I made a special tool just like the special Mercury tool and it worked perfectly. You can borrow my tool if you are here in my shop but I will not sell it. It will be included with my restored and serviced KG7 that has custom made steering bracket for remote steering, Quincy Exhaust manifold, A variety of stock and speed props, etc.