Mc1 lower prop seals

[1977 SILVERLINE]

I pulled the seal retainer to install prop seals and now gear oil runs out of the prop. Do I need to add sealant where the retainer touches the gear housing? Thanks. 1977 470

 

[kenny nunez]

Did you clean the surface where the large “O” ring seals to the case and used a new one ?

 

[Bt Doctur]

I pulled the seal retainer to install prop seals
Did you mean this

 

[Bt Doctur]

leave any parts out

 

[1977 SILVERLINE]

So there is no need for sealant. The oring should keep the gear oil from running out.

 

[Bt Doctur]

only when #28 is tightened down compressing and expanding the O ring #17

 

[1977 SILVERLINE]

So no sealant is required if done right?

 

[kenny nunez]

You really should use sealant on the outer of seals and “O” rings. The factory does it.

 

[1977 SILVERLINE]

I did not put sealant on the oring but I did on both surfaces that touch the gear case housing. Gear oil ran out really fast the first time that’s why I took it apart again and decided to apply sealant. Maybe i did not tighten the nut enough to compress the oring.