how to remove prop shaft seal on a duoprop DPS-A ?

[princecraft_196]

Hello,

I need to change prop shaft seals on my duoprop DPS-A.
I can not figure out how to remove those seals...

Do I have to remove the needle roller bushin ? with a puller ?

all help is appreciate, thanks

Yannick

 

[muc]

Yes the seals are pushed out with the bearing.

Service manual #47701863 covers the procedure and tools.

 

[princecraft_196]

is there a website where I can download it ?

 

[muc]

is there a website where I can download it ?

Not that I know of legally. But if you search, maybe you can find somewhere to steal it. Maybe get a virus at the same time?

 

[alldodge]

If bearing does not need to be replaced, use a punch and hammer to remove seal. Drive it from inside out

To install new, I've used standard bearing/seal tool
https://shop.advanceautoparts.com/p...go1azzA_oY8Hey_ExqhoCGVAQAvD_BwE&gclsrc=aw.ds

 

[Scott Danforth]

easy peasy job with a set of seal pry tools

 

[Bt Doctur]

file:///C:/Users/Edeward%20J/Downloads/1c3b037a1187fdbab46fc810973749%20(1).pdf

 

[muc]

@alldodge
@Scott Danforth
I just got to ask.
How many times have you done this job on a DPS-A?
That’s a $300.00 bearing carrier that is about to get destroyed.

 

[alldodge]

I have not done it on a DPS, but I am looking at the manual listed above and that is how it says to remove.

I have also done it on a Bravo 3 and a Bravo 1 and had no issues

BT Doctur sent you a link (may have to cut and past) so you can get the manual

 

[Scott Danforth]

Did tge neighbord DPS 2 years ago, about 3 times on a stringer400, once on a stringer 800, a few times on a DPA, twice on a Bravo, once on my alpha, twice on my 290DP, a few MC-1s, about 35 or so outboards

however been swapping seals on gear boxes for decades. Designed a few gear boxes as well

Have a whole tool box of seal pullers and seal drivers

 

[muc]

Did tge neighbord DPS 2 years ago, about 3 times on a stringer400, once on a stringer 800, a few times on a DPA, twice on a Bravo, once on my alpha, twice on my 290DP, a few MC-1s, about 35 or so outboards

however been swapping seals on gear boxes for decades. Designed a few gear boxes as well

Have a whole tool box of seal pullers and seal drivers

I'm guessing you worked on a DP-S ?
They have prop seals like the MerCruiser. And those seals can be removed from the rear.
But the O.P. posted pictures of a DPS-A bearing carrier. Those seals can only be pushed out the front and the needle bearing will come out with them. The O.D. of the seals is the same as the bearing.

The O.P. even posted a parts breakdown that clearly shows what direction the seals are installed.

 

[Scott Danforth]

I'm guessing you worked on a DP-S ?
They have prop seals like the MerCruiser. And those seals can be removed from the rear.
But the O.P. posted pictures of a DPS-A bearing carrier. Those seals can only be pushed out the front and the needle bearing will come out with them. The O.D. of the seals is the same as the bearing.

The O.P. even posted a parts breakdown that clearly shows what direction the seals are installed.

looking at the casting, the bore is a thru-bore and the retention "lip" is the 4 staked areas. that is a cheesy design vs machining a tru lip. however it would save a secondary machining step.

 

[muc]

looking at the casting, the bore is a thru-bore and the retention "lip" is the 4 staked areas. that is a cheesy design vs machining a tru lip. however it would save a secondary machining step.

I think it probably is more expensive to make it this way.
Those lips are there to function as a fishing line cutter. Actually seems to work pretty good.

The DPS series drives are very different from the DP series drives. Very few parts interchange. The DPS series (depending on serial number or upgrade) can have clutch plate shifting with no cone clutch.