Help needed pulling driveshaft seal

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WetWillie
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Help needed pulling driveshaft seal

Postby WetWillie » Sun Jan 28, 2018 1:15 pm

I'd like any tips for removing the driveshaft seal from the lower unit of my '64 Evinrude 40 Big Twin. I'm trying to avoid damaging the surrounding aluminum machined surfaces. So far, I have soaked the seal/boss interface with Kroil penetrant, removed some of the rubber seal within and tried prying the brass seal case with a screwdriver. It hasn't budged in the slightest.
I have considered using a prick punch to crush or separate the brass case from the housing but don't want to risk damaging the bore.
Any and all suggestions would be appreciated.
Thanks,
Willie

Chris_P
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Re: Help needed pulling driveshaft seal

Postby Chris_P » Sun Jan 28, 2018 1:51 pm

Well a standard seal puller will have it out in a jiffy. Short of that, you should be able to collapse it and pry it out with a screwdriver.

OLCAH
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Re: Help needed pulling driveshaft seal

Postby OLCAH » Sun Jan 28, 2018 2:10 pm

I used a die grinder on mine to thin the wall against the bore until I could drive/pry/chisel it out. Forget how I got the bearings out of the way so they did not get grinding dust. It was a slow messy job.

Jerry Ahrens
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Re: Help needed pulling driveshaft seal

Postby Jerry Ahrens » Sun Jan 28, 2018 3:22 pm

Those can get stuck in there pretty tight. I use a small pin punch to carefully and slowly roll the seal case away from the bore. Be careful, or you will gouge up the bore.
Jerry Ahrens AOMCI Member MAPS Chapter President

WetWillie
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Re: Help needed pulling driveshaft seal

Postby WetWillie » Sun Jan 28, 2018 5:19 pm

Thanks for the responses. I considered using a die grinder and would stuff a rag down inside the bore to protect the bearing 1st, if I did. I like the idea of using a seal puller. Maybe, I'll head over to Harbor Freight if I can't find the last one I got there. I do remember it folding over on itself while trying to remove another stubborn seal. This brings me to the pin punch idea. Definitely a pita but an idea I considered early on. Man do I ever hate removing old seals.
THANKS again to all who responded.

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Mumbles
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Re: Help needed pulling driveshaft seal

Postby Mumbles » Sun Jan 28, 2018 6:27 pm

Some carefully placed drilled holes and screws can be used to coax it out if the special tool is unavailable.
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Richard A. White
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Re: Help needed pulling driveshaft seal

Postby Richard A. White » Sun Jan 28, 2018 6:35 pm

Mumbles, that is the crank shaft seal, he is attempting to pull the drive shaft seal... there is a puller for that, and I have one, but to reproduce it would be insane.... I bought it from Frank R.

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Mumbles
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Re: Help needed pulling driveshaft seal

Postby Mumbles » Sun Jan 28, 2018 6:41 pm

Richard A. White wrote:Mumbles, that is the crank shaft seal, he is attempting to pull the drive shaft seal... there is a puller for that, and I have one, but to reproduce it would be insane.... I bought it from Frank R.



Dang, now I can't even read correctly. I'm blaming it on my new progressive specs! :geek:
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Theodore
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Re: Help needed pulling driveshaft seal

Postby Theodore » Mon Jan 29, 2018 12:27 pm

Richard A. White wrote:Mumbles, that is the crank shaft seal, he is attempting to pull the drive shaft seal... there is a puller for that, and I have one, but to reproduce it would be insane.... I bought it from Frank R.


Richard, Is that 377565? I am gathering the bits and pieces to make a complete one. It looks like the hardened spiral heads would be the most difficult part to reproduce. ( And not easy to find, either.)

I think its a pretty cool tool. FR didn't seem to share my enthusiasm.

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Richard A. White
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Re: Help needed pulling driveshaft seal

Postby Richard A. White » Mon Jan 29, 2018 12:42 pm

Not sure of the part number, but i got lucky, the part that Frank used and had broken on him, I did a search on Ebay and found one...no hesitation on buying it.....I can look for the part number this evening...

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