Replacement Seals

[Buccaneer]

Looking for seals on the lower unit of my Firestone,
and I’m always at a loss on what to get with all
the different "styles / types" and "lip" selection.
Looking for prop and drive shaft seals. Would rather
not use NOS seals that are 50 or 60 years old.
The SKF site is handy for seal lookup via bore and shaft size,
but not so handy for telling me what I need for my application.

For instance, I need one seal OD = 1.000 x Shaft size .500 x .250 thick
On the link below, it gives me four options.
Which, if any of these are okay for outboards?
Thanks, Buccaneer
http://www2.chicago-rawhide.com/popup_p … 457010.htm

Prepare to be boarded!

[frankr]

Somewhere on that site is a catalog explaining the lip styles, etc. But think I can find it now? Ha!

[frankr]

Ya hoo, I found it. All you ever wanted to know bout seals, and some that you didn’t want to know.
http://www.skf.com/binary/21-129139/Ind … 9_2-EN.pdf

[Buccaneer]

Thanks Frank. Everything in that pdf file about seals, except the
page that says…… "Use this type of seals for outboards"!!!
I’ve looked at it for 40 minutes, and was lost in a sea of information.

Prepare to be boarded!

[frankr]

Actually, of the four that came up in your link, the only one I would consider is 541625 CRW1 style, Nitrile. HOWEVER it is .375 thick. Sounds like you are SOL with this list.

[frankr]

Going through my notes, on my Scott I used a TCM# 05102TEB-H-BX It is the size you specified. I got it at the local bearing house.

[Buccaneer]

Thanks again Frank, I’ll look that number up.
PS- only found a couple of hits on that seal
number. One place wanted $3.48…….. plus $15.50
for shipping and handling!…… I’ll keep looking.

Prepare to be boarded!

[Indian Group Leader]

Buccanneer,

Take your old seal to an automotive bearing and seal supply company in your city and they should be able to match it very closely. I would venture to say that the newer seals are made with a more resilient material than those in the 1950’s. If you let them know what your seal is for, they should have no problems helping you find something that will do the job.

Tom

[Mumbles]

A factory prop shaft seal usually has a brass or stainless shield on the outside to help keep fish line and tadpoles out of the gearcase. I haven’t seen any aftermarket ones with this nice feature.

[Buccaneer]

The old seal was "heavy duty" and tadpole proof as Mumbles suggest.
If all else fails, I’ll make the 60 mile round trip to the auto parts stores.
It’s hard to find a store now days that will "hit the books". It seems
if these youngsters don’t have a part number to input to their computer,
they’re lost.

Prepare to be boarded!

[Author]

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