Should a new wheel bearing wobble?

[steved0x]

My front on one side wobbled until I added the torquing force of the axle nut. Otherwise the two inner races can slightly spread and allow a slight wobble. You might be able to test it using the bearing press to clamp the inner races together and verify the wobble is gone. The 340# of torque really clamps the inner races together. Or it might be in crooked... See if you can find plates and clamp it and spin the hub and see if it resolved. I think this is why the shop manual says not to roll the car if the axle nut is not torqued down. My bearings have been doing well for the last 2 years and 30 or so track days and I was nervous about that wobble at first too.

[Jim 'n' SC]

What kind of car is it. The picture shows brake shoes. Boxster's don't have brake shoes?

[particlewave]

Originally Posted by Jim 'n' SC

What kind of car is it. The picture shows brake shoes. Boxster's don't have brake shoes?

That's the parking brake.

[Gilles]

[QUOTE=steved0x;576463]My front on one side wobbled until I added the torquing force of the axle nut. Otherwise the two inner races can slightly spread and allow a slight wobble. You might be able to test it using the bearing press to clamp the inner races together and verify the wobble is gone. The 340# of torque really clamps the inner races together. Or it might be in crooked... QUOTE]

+ 1

After you torque the wheel nut the wobble should be gone, it is important to torque the big nut 'before' you move the car

[Boxstard]

When I replaced rear wheel bearings, one of FAG bearings was not as tight press-fit as the other one. OD was a few hundreds of mm smaller, it bugged me enough to buy another and it was as tight. Also believe it or not, one of old bearings I took out of the car had one ball missing... I mean it was not there and no sign of broken pieces or otherwise... Frankly I don’t trust FAG.

[BigWalds]

Boxstard,
I must say after writing my post I went down to a non Porsche standard parts supplier as they showed they had bearings in stock, amazing.
The brand is a licenced Australian maker here, MKA.
I bought two and installed on rears after removing the FAG ones.

No more Wobble on either rear side !
That's without the axles installed and nut torqued.
They WERE very wobbly before...

That's amazing yours was missing a ball. !

I'm off to another branch of same store to get two more for the front.
I guess I just dump the four FAG ones.

The MKA's look really well machined and are fully packed with a black grease, as opposed to the meagre white grease in FAG.

I think I just did an advert for MKA bearings Australia.
Repco the great Australian Auto parts company that stocks them.

My FAG bearings were spinning between inner sides of race and hub.
The MKA's needed pulling on even after hub was in freezer.

Yeah peace of mind is a lot.
Well done all, especially Boxstard.!

2001 Boxster 986.