New Wheel Bearings Bad?

[jcb986]

They replacement bearing may have been an inferior product made in China or South America. I would have went with Porsche or German made one. Sorry, but when it comes to major parts I will go with Porsche, even if it costs more. :dance:

PS: Since you spun the wheel and heard no noise, why did you do it. A bad bearing does not go quite with a spinning wheel in the air. If ain't broke...don't fix it!!!

[releese78]

The bearings were bad to begin with, which is why I did this along with the inner CV joints and boots (inner boots were torn).

The replacement bearings are FAG brand, which is the OEM manufacturer for Porsche, and they are in fact German made. I think my problem is more than likely that I didnt pull the hub in using the inner races as mentioned. Not a very expensive lesson learned, but a time consuming one. Hopefully this thread helps out some fellow bearing changers! Cheers and thanks everyone for the replies.

Originally Posted by jcb986

They replacement bearing may have been an inferior product made in China or South America. I would have went with Porsche or German made one. Sorry, but when it comes to major parts I will go with Porsche, even if it costs more. :dance:

PS: Since you spun the wheel and heard no noise, why did you do it. A bad bearing does not go quite with a spinning wheel in the air. If ain't broke...don't fix it!!!

[releese78]

Quick question...

I bought another set of bearings and the SIR tool, and I'll be changing the rears again tomorrow. To be absolutely sure I do it right this time, I wanted to check on two things.

First, these bearings aren't directional are they? The outer rim of one side is a larger groove.

Second, since they are sealed bearings, I don't need to pack any additional grease do i?

Thanks in advance,

[brp987]

page 42-14 bentley says install bearings with numbers facing toward the wheel hub.

The bearings come ready to install.

[gregwils]

Here is a thread on the Pelican board. It's actually for older 911's, but the concepts are similar. The post explains how to build a bearing puller similar to sir tools for less than $20 at Home Depot or Lowes. I did mine (911) using the procedure. It was very simple. Hope this helps.

http://forums.pelicanparts.com/porsche-911-technical-forum/179300-rear-wheel-bearing-removal.html

[releese78]

I feel like a dumbass. Bought another set of bearings and the SIR tool, put in the new ones and it still made the same noise/vibration. I knew that I did it right this time (thought I did last time too, but...).

After all of that, it turned out to be my cheap wheel spacers causing the issue. I tried out a larger set to see if it was the problem, and voi-la, no more vibration. Time to spend some more cash for the right size ones.

[tnoice]

glad you found the issue.