RAW WATER IMPELLER REPLACE (MERC 496cu.in. 375 hp. B-III enclosed cooling system

[tobra100]

Does anyone know of someone or somewhere that I might find information on replacing the raw water impeller on enclosed cooling system on a 396cu.in. 375hp B-III? Thanks Ray

 

[alldodge]

Does anyone know of someone or somewhere that I might find information on replacing the raw water impeller on enclosed cooling system on a 396cu.in. 375hp B-III? Thanks Ray

There is several threads here discussing it. It's not hard, hardest part is getting to it.

http://forums.iboats.com/forum/engi...vo-iii-496cu-in-375hp-enclosed-cooling-system
http://forums.iboats.com/forum/engi...-496-mercruiser-ho-impeller-water-pump-change

https://www.youtube.com/watch?v=eZYJq746awc

 

[tobra100]

Thanks. Ithe housing or cap show signs of wear, where can I buy the rebuild kit? Thanks Ray

 

[alldodge]

Thanks. Ithe housing or cap show signs of wear, where can I buy the rebuild kit? Thanks Ray

You have a mercruiser gen 7 seawater pump. If you google "mercruiser gen 7 seawater pump rebuild kit" it will come up with several listings. If you can give us your serial number we can look up the OEM version number. Below is a listing for one like yours and may be the correct one.

http://www.mercruiserparts.com/Show...9.png&inbr=11746&bnbr=210&bdesc=Seawater+Pump