Tutorial for brake bull pinion oil seal removal (pic heavy)

Well, I love to teach, so I'm going to play with this one a little, and do a little sharing. Hope I don't bore you'll too much.

That oil seal started leaking after the new paint job. (Murphy's law) and differential oil oozing down my shiny new red paint was really freaking me out. Trying to remove that oil seal was really kicking my a$$ causing me to think there has to be an easier way to do this. I did a search on the subject, and all I could find was basically the same from several different parties, and they all more or less said the same thing. Drill out stock to weaken, then try chiseling it out, or collapse it in. Well, that didn't work for me. Just made my blood boil even more.

Hear was my delema.


Here's what I started with. 3/4"x1" stock. The coal forge and anvil made short work of straightening them out.


Pcs, cut and ready for weld up. Measurements are seen to the right. That's 2" inside height,


Countersink half drilled hole.


Pcs. welded up. (6014) The fixture is in compression when used, so no need for strong fancy welds.


This is how it fits.


There it is, just about to come out The pulling prongs were a tight fit.Had to lay them flat and used one of the spline groves to stick them in. Once in, I up righted them. Then I assembled the whole contraption. Pretty simple. It came out like greased lighting.

Old and new.


Ready to put in. Don't forget the never seize.

3"(I think) PVC


Finished. Maybe I could have applied pressure directly to the pinon. I don't know, I just didn't want to chance it.


Best regards
Patrick
'49M

Very much appreciated... I have fought with those seals on
one of my h's and on my 51md Not Fun! I am getting ready
to start on my 41md and need to do the pinion,pto,main
and countershaft seals. Thanks for the info,jim.

Thanks very much. A person ought to start making that puller brace right now, ...

Many times, you can drill a pilot hole and install 2 sheet metal screws into the seal body. Then pry the seal out on alternate sides with screwdrivers or lady-slipper bars.

Or a couple screws and a slide hammer takes them right out.

(quoted from post at 07:35:30 06/12/14) Or a couple screws and a slide hammer takes them right out.

Click to expand...

Naw, I tried that, screws stripped right out. That old seal looked to be an inch thick, and probably OEM from the factory 65 years ago, and has remained undisturbed since then, So that's about 9 or 10 sq. inches of surface area for that little ole screw to be pulling on. No contest. That seal was very tight in there, and not giving up that easy.

Thanks for the reply Gab.

Best regards
Patrick
'49M

You didn't use the right type of screw or something. Ive pulled more of those than I can count with screws and a slide hammer, or in some cases just my little pry bar prying n each screw back and forth. HOWEVER, I like your method!

Are you talking about that double seal on the brake shaft or a single seal on other applications. That double seal is tough as it is two seals put inside of another crimped retainer. Have dug out many of them over the years and have also pulled many single seals with the screws and slide hammer.

This is all I have ever used for the last few years. You can get one for $15.00 or less. Has always worked for me.

(quoted from post at 17:11:39 06/12/14) This is all I have ever used for the last few years. You can get one for $15.00 or less. Has always worked for me.

Click to expand...

That's a good tool, but won't work for this application. No way Jose. I already checked that out. Thanks for the suggestion any way Rick.

The double seals. Next time I have to work on one, Ill take pics.

Good enough, I was just checking to make sure we were on the same page.