ja78911sc

It appears I have a right rear wheel bearing that is giving up. I have ruled out power steering, etc.

It sounds like a helicopter is following me when I take hard right turns. Left turns nothing. I had a friend drive my car in a parking lot so I could confirm where the noise was coming from. Definitely right rear during right hand turns.

I did a search but could not locate any pictures of the procedure.

Any pictures or advice would be greatly appreciated (remove suspension arm or leave in place, etc.). Some leave the arm on and some do not. Could not pin down which would be the best direction.

Also, I have access to a lift and press.

Thanks,
Jim

crg53

This is for a 993, but the procedure for 964 is the same.
http://p-car.com/diy/bearing/bearing.htm

ja78911sc

Thanks Steen!

I usually check p-car.com but did not on this repair because I assumed a 993
would be different than a 964.

darth

Are you sure it's not a bearing on the left side? Typically the side under load makes the noise.

BHCfarkas

just to confirm, you should be able to jack the car up and give the wheel a wiggle top and bottom as well as left to right. Any play would also indicate a bearing that's toast.

crg53

If it was me, I would change both sides while I am at it, there is a good chance that the other side is about ready to go as well. To do the second side is only half the work of the first when you already have all the tools handy, and then you don't have to touch those for another 20 + years.

ja78911sc

Definitely on the right side and only when turning right. I was outside the car in a parking lot, with a friend driving the car, to confirm the location.

ja78911sc

No play. Will the rear have play if the bearing is bad?

Steen, my plan is to replace both sides

Goughary

When you get to it, I'd love to see some step by step photos...I may be doing the same thing soon...

ja78911sc

Your thread was the first to come up on my search

I am still on the fence about the repair. I have a good friend with a lift and every tool I need--minus the bearing removal tool. I will post some pics if I decide to tackle this project.

BHCfarkas

Yes, if a bearing is bad there should be a noticeable amount of play in the wheel that's bad. It is possible the bearing still might be bad without any noticeable play, but that's generally one of the first indications when checking.

Have you had the car aligned any time recently? Feathered tires from worn shocks or misalignment can sound a LOT like a worn bearing in many ways.

ThomasC2

Instead of getting the special tool it isn't so much more work ro remove the whole trailing arm. Then you can get the bearing out with a regular press that every workshop has.

Thomas

ja78911sc

Thanks for the feedback. Tires, alignment, shocks, etc. are all good. I wish it was something this simple

My friend has a press and a lift. If I decide to tackle this repair, it will be at his home shop. My only fear with removing the trailing arm is I will be tempted to replace the rear bushings

ja78911sc

Update:

I completed the rear wheel bearing project this weekend with the following Harbor Freight tools (I borrowed a slide hammer but Harbor Freight sells one similar to the tool I used) I also borrowed a six hundred ft/lb torque wrench (not necessary but made the final 340 ft/lb wheel nut torque a breeze):

ja78911sc

I used the following videos for instruction. It was filmed using a BMW but the same principle. The difference between the BMW video and what I used on my 964 is:

Use the slide hammer to remove the hub vs. in the video he uses a bearing separator. You attach the lugs to the base on the slide hammer. Using the slide hammer allows the parking brake to remain in place.

The 964 does not have a bearing retainer clip. There are two tabs that bolt to the control arm to retain the bearing (view on P-car thread listed above). Remove before you extract the bearing.

I forgot to write down which number removal plates I used. It is very obvious which plates are the correct size.