1971 Johnson 4 hp lower unit seal

[curtis4769]

Can anyone please direct me to the part number I need:

Model # 4W71D

Gear oil leaking from the prop seal I believe.

Anything tricky with this repair?

 

[Daviet]

Re: 1971 Johnson 4 hp lower unit seal

Is it a standard or weedless gearcase?

 

[hidef]

Re: 1971 Johnson 4 hp lower unit seal

W=weedless

Finding the prop shaft oil seal item 20 will be hardest. You will have to call Seaway as it is NLA. I suggest while you are tearing apart you also get the following;

9, 32, 11, 5, 22 and ( 2 x 311598 which are the drain and fill plug washers)

http://www.seawaymarine.com/pages/O...W71D_1971/GEARCASE-WEEDLESS_DRIVE/33793/42494

 

[curtis4769]

Re: 1971 Johnson 4 hp lower unit seal

Thanks once again for your help. I replaced a few of those parts (drive shaft o-ring, water tube grommet) when I replaced the impeller last month. I picked up 2 more of these motors today(1 is seized) for only $100. So now I have an extra fuel pump that you recommended as well. The lower unit on the seized motor looks to be in good shape, so I might just switch out lowers instead of sealing this one up and save that for a winter project.

 

[hidef]

Re: 1971 Johnson 4 hp lower unit seal

I keep looking for another one to have as a spare but everyone I find for sale is to much money. I would like to find a long shaft.