1969 18 hp prop shaft seal... does it exist?

[BlackoutBill21]

So I'm re sealing my 1969 18 hp 18902 D and the prop shaft doesn't have what looks to be a seal like all others I've seen! Does it in fact have one? Also at the top of the water impeller housing is some sort of extension with two rubber O-rings in each side... I've never seen this. What is it? Thanks in advance.

 

[racerone]

I will try coaching on this.-----It is simple.---------Remove the washer ! ----Pop the seal out and replace the seal.----One party refused to believe this can be done.

 

[BlackoutBill21]

Lol ok so the reason it doesn't look like the others is because the washer is flat and in the way! Oh I'm coachable ! When masters talk I listen! Thank you!

 

[racerone]

Did you listen the last time ?

 

[BlackoutBill21]

Last time???

I never asked about a prop seal before??

In any case washer is out and so is seal! Now why doesn't the parts diagram for my gear case show a seal and corresponding part number??? The Lito bought on eBay doesn't have the correct seal. The inner diameter is too small!

 

[82rude]

i assume your talking about number 39?http://www.crowleymarine.com/johnson-evinrude/parts/39890.cfm?q=18902 d

 

[Vic.S]

i assume your talking about number 39?http://www.crowleymarine.com/johnson-evinrude/parts/39890.cfm?q=18902 d

# 39 is the drive shaft seal, not the prop shaft seal

 

[BlackoutBill21]

Right not 39... the seal that's inside # 25! In any case I removed the washer as per racerone's advice and removed the seal! Just wondering why the diagram doesn't show a seal and Part number!

Also the extension above the water impeller housing... still wondering what it is it's not in the diagram either

 

[racerone]

??--------The elusive part is shown along with all the ----exhaust housing----parts.----Is the part # on the old seal ??-Measure the shaft with micrometer and measure bore of the housing.---Post those exact numbers.

 

[82rude]

Sorry my mistake about #39.

 

[Vic.S]

Also the extension above the water impeller housing... still wondering what it is it's not in the diagram either

Gotta know whereto look for these things.
.
It's #114 in the lower unit diagram http://www.crowleymarine.com/johnson-evinrude/parts/39891.cfm

 

[BlackoutBill21]

You the man Vic! I see it now. Racerone I don't own a micrometer but I will look into getting one. The part number is not on the old seal . Diameter of the prop shaft is 5/8, the seal has a removable o ring that the guy I bought it from says doesn't belong in the seal. Without the no ring the seal fits fine... the question is what is this o ring for