Lower Unit Seals

[dstuard]

Will I have to completely take the lower unit apart to change the seals in my 1983 115 HP Merc? Is this a job for the shade tree boat mechanic?

 

[Solittle]

Re: Lower Unit Seals

Not a job for the shade tree mech. without a factory manual, access to tools and patience.

 

[scubarobby]

Re: Lower Unit Seals

Remember to make sure you need to replace the prop shaft seal before you open that can of worms. You can test it with a bicycle pump but dont go over about 15 psi. the water pump and shifter shaft seals are usually a peice of cake. I never changed a mercury prop shaft seal thank goodness.<br />robby

 

[dstuard]

Re: Lower Unit Seals

I have a manual and patience and basic tools. I guess I will get the bike pump and try and see where it is coming from.

 

[dstuard]

Re: Lower Unit Seals

Will I need the special tool to remove the shift shaft bushing?