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View Full Version : Omc stern drive 7778 water impeller removal from upper gear case



Brian Mc Nally
05-30-2002, 08:57 PM
I have removed the upper gear case andremoved the swivel housing mounting screws and lockwashers+swivel housing.My problem is I am unable to remove water pump housing .Can you advise me on what to do so that I can replace the impeller?

yours sincerely.....

Brian....

pat carnahan
08-08-2002, 12:35 AM
" tap tap tap, wiggle and tap. Also take a close look at the splines on the waterpump shaft they are known to be a problem in omc drives. If you have the four big bolts out nothing but sealer and age are holding it together. "