1982 7.5hp impeller change

oldcatamount

Lieutenant Commander
Joined
Apr 4, 2010
Messages
1,740
Hi Guys, Can someone guide me as to how to remove the lower unit from this 1982 7.5 hp so that I can change the impeller. Any help will be greatly appreciated!:confused:
 

e10

Seaman Apprentice
Joined
Feb 3, 2011
Messages
35
Re: 1982 7.5hp impeller change

What make motor and what year?
 

oldcatamount

Lieutenant Commander
Joined
Apr 4, 2010
Messages
1,740
Re: 1982 7.5hp impeller change

It's a Mercury. I also need the spark plug number.
 

The Mechanic

Cadet
Joined
Jul 28, 2009
Messages
8
Re: 1982 7.5hp impeller change

Hi Guys, Can someone guide me as to how to remove the lower unit from this 1982 7.5 hp so that I can change the impeller. Any help will be greatly appreciated!:confused:

Remove nut (9/16" wrench) below cav plate, forward side of gearcase.

Remove nut (1/2" wrench) above prop next to inlet screen.

Lower gearcase should separate.

Spark Plug = Champion L77JC4 (above serial number 5226934).
 
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