1991 Yamaha 90 HP outboard water pump problem

chazdo2

Cadet
Joined
Feb 19, 2012
Messages
28
Anybody have a method to remove the old water pump impeller? I cant get it off!
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: 1991 Yamaha 90 HP outboard water pump problem

You'll have to pry it up and off...probably stuck on the shaft from mineral/corrosion deposits. Worst case, you may have to cut it off. When you mount your new woodruff key and impeller, assemble everything with waterproof marine grease to help removal next time. Good Luck!:)
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: 1991 Yamaha 90 HP outboard water pump problem

Well good luck...I take it that it's been a good while since water pump was replaced?....Saltwater motor?....That woodruff key in the driveshaft may also be a challenge to remove...just have to work it out!;)
 
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