Topic: Lower Unit seal removal tools questions – Antique Outboard Motor Club,Inc

This topic has 6 replies, 6 voices, and was last updated 4 years, 7 months ago by fleetwin.

Viewing 7 posts - 1 through 7 (of 7 total)

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September 26, 2019 at 4:39 pm #184079
gonecat
Participant
Hello. I have been reading and watching a lot of information on gearcase seal removal.
I was wondering if anyone knows the original tools / part numbers and proper removal technique as per factory back when the motors were new.
I am particularly interested in learning of tools / methods or original tools for the 50s and 60s 5.5 , 7.5 , 9.5 and 3 hp prop shaft, gearcase and driveshaft housing seal removal.
I know of backyard mechanic techniques that can work, but I’d rather do the job correctly and not risk breaking parts by “will nilly hammering and prying” 🙂
Thanks
Steve
September 26, 2019 at 6:31 pm #184082
frankr
Participant
US Member
Being an Evinrude dealer mechanic, I bought the OMC Special Tool kit back in “The Day”. Nicely made POS. The threaded pullers quickly broke.
September 26, 2019 at 6:36 pm #184085
garry-in-michigan
Participant
Lifetime Member
This is what I have – – –

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- This reply was modified 4 years, 7 months ago by garry-in-michigan.
September 27, 2019 at 2:29 pm #184134
RICHARD A. WHITE
Participant
Lifetime Member
I actually bought the tool from you Frank, I was soooo lucky to find a replacement for the broken part on Ebay within a week of receiving the tool. Still have it as well.

http://www.richardsoutboardtools.com
classicomctools@gmail.com
September 27, 2019 at 8:09 pm #184158
opposedtwin
Participant
US Member - 2 Years
Richard, any plans to begin reproducing them?
September 27, 2019 at 8:15 pm #184159
RICHARD A. WHITE
Participant
Lifetime Member
No, I do not, this tool has some seriously strange threads, and as Frank already stated, those threads are seriously weak…. I am hoping for a different solution to removing these seals, but like fine wine, they take time…

http://www.richardsoutboardtools.com
classicomctools@gmail.com
September 28, 2019 at 5:52 pm #184214
fleetwin
Participant
US Member - 2 Years
Well, I say, good for you buddy! It is so important to be careful removing these seals for the reasons you mentioned…It is so easy to damage/distort the aluminum castings these seals ride in…
Removing these seals has always been a dreaded chore for me as well…The seal lips tend to just bend up even when using appropriate remover tools. Once the lips have been bent up a few times, you end up resorting to trying the squish the seal housing in using a small punch….A horrible chore indeed… I am very fortunate to have had help machining a few tools that work pretty well, but it usually takes a few attempts. And, the tools are specific to a particular seal/inner opening dimension.
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