79 Merc 40hp lower water pump housing removal

[bcbart82]

Hello,

I'm working on a 1979 Mercury 40hp outboard and wanted to ask how to remove the lower water pump housing. I've been unable to remove it and I dont want to break it. I have a impeller kit with all new gaskets and orings so i wanted to replace them all.

The upper housing and old impeller are of course removed at this point. Any help would be much appreciated.

Bart

 

[kazek]

Re: 79 Merc 40hp lower water pump housing removal

Did you remove flush plug?it should be just above gear case oil vent.

 

[bcbart82]

Re: 79 Merc 40hp lower water pump housing removal

I'll have to check that when I get home and report back again later. I removed the fill plug just below the water pump assembly on the outside of the lower unit but I dont think that's what you're referring to.

thanks

 

[bcbart82]

Re: 79 Merc 40hp lower water pump housing removal

Is there pictures available to help explain this flush plug? I'm still not having any luck.

Thanks.

 

[GA_Boater]

Re: 79 Merc 40hp lower water pump housing removal

The pics are in your manual. Along with a step by step write up.

 

[bcbart82]

Re: 79 Merc 40hp lower water pump housing removal

I got it. It was just a matter of persistance to get it unstuck. I dont have a manual but that would be a good investment.

Thanks.