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-   -   Removing race from hub (http://forums.pelicanparts.com/porsche-911-technical-forum/1055454-removing-race-hub.html)

BlueHorizon 03-20-2020 03:51 AM

Removing race from hub
 
So I’ve made good progress in getting my rear suspension pulled apart and have been able to remove the bearing from the rear trailing arm. However, I ended up with the classic “race stuck to the hub” situation.

Looking at old threads one of the pieces of advice is to Dremel a line on the race and then crack it with a chisel. Is this still the preferred method to remove the race or should I consider alternative ways?

Thanks!

GG Allin 03-20-2020 05:04 AM

Do you have a picture? I just dealt with this. Not sure if your's is the same situation as mine. I used one of these & a harbor freight press.

https://images-na.ssl-images-amazon...._AC_SX425_.jpg

r lane 03-20-2020 05:22 AM

I have cut grooves at 180* to each other, applied heat and then applied the air chisel. Wrap the shaft with heavy tape, sheet aluminum or something to afford protection, as the chisel will slip now and again.

yelcab1 03-20-2020 06:17 AM

There are several methods, one is more aggressive than the other.

1) Oxy acetolene torch. At the right temperature, the outer race falls off. Forget the smaller propane torch.
2) Bearing puller like the picture above.
3) Cut two grooves, finish off with a cold chisel.

BlueHorizon 03-20-2020 06:21 AM

Thanks all. Regarding photos, here are a couple that will show where the race is relative to the hub. It's quite snug down below so not sure if the bearing puller would have enough room to get underneath?

http://forums.pelicanparts.com/uploa...1584714028.jpg

http://forums.pelicanparts.com/uploa...1584714028.JPG

john walker's workshop 03-20-2020 09:40 AM

Face shield and gloves. Take a big ass cold chisel with a sharp end and place the end between the race and hub and wack it good to move the race outward. Then you can use a press tool as pictured, or as I do it, two real long crowfoot prybars and oof it off. Heat can help if you do it manually. All this with the flange clamped in a vise of course.

cmcfaul 03-20-2020 09:45 AM

I cut mine off with a dremel.

Chris

dannobee 03-20-2020 08:56 PM

John's method works. If it's really stuck, you can use a cutoff wheel at a 45 degree angle to cut a groove in the race, then use aforementioned chisel and whack it in your new groove until it cracks. Then it will literally fall off.

BlueHorizon 03-21-2020 12:08 PM

http://forums.pelicanparts.com/uploa...1584821223.jpg

Thank you all! Did the Dremel, heat and cold chisel approach and, after much Dremelling, had success.

One down.. 🙂

Swazzy 07-07-2020 02:56 PM

This just happened to me and I resolved it easily by doing the following (see pics):
1. Cut 3 notches in the thick part of the race where I would fit the teeth of the puller.
2. Grind down the puller teeth a bit for an solid fit and deeper grip. (It's a HF puller)
3. Use a couple of washers for the top (used smaller washers once the race was close to the end so it could fit over the washers.

IMO this is way better than dremeling and hammering... took about 10 minutes each.

http://forums.pelicanparts.com/uploa...1594162500.jpg
http://forums.pelicanparts.com/uploa...1594162500.jpg


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