Changing 944 rear wheel bearings

[Steve C]

Hi

Has anyone changed the rear wheel bearing in their 944 alloy arms, just looking for tips.

Steve

[JIMP]

Hello
you will need a press to do the job right (without damaging other component with hammering). Is a tight fit -in most cases the old bearing is destroyed- so attention is needed for the new one, hope it helps a little

JIMP

[Steve C]

Hi

Pressed the bearings out OK, the inner-outer race gets stuck on the drive flange ruining the bearing & seal. On the Pelican 944 forum they said to freeze the bearing and heat the arm when fiting the bearing.

Steve

[jcgeddes]

When I did mine I heated the arm up in the oven to about 100°C the bearing droped straight in, you will need to have press handy as the socond one I did just treid to nip as the bearing bottomed out, but the hardest job was removing the old ones.
John

[Bullyboy]

Just found out from a farmer friend that if you run a bead with the welder around the outer race of the bearing when its in the housing, it will shrink the outer race. It will come out quite easily. I tried it tonight, ran a bead just on the wheel side of the race the first time. It took a little work to get the bearing out. Second time I ran a bead on both the inner and outer. Then I had a 2.5" piece of pipe that I ran a bead around with the welder to make a bearing driver and it was just big enough to drive that bearing out with a couple whacks.

[MattKab]

I have this down to a fine art. We have a 10,000kgf press and access to a 100t, this is a better method sometimes when the part is awkward or lacking in meat to press against, like T1 and T2 balljoint cups for example. 1 slow bead with a MIG and leave it to cool for 5-10 minutes. 1 blow with a hammer isn't unusual. The amount of shrinkage can be impressive.

UK readers note 'signs of excessive heat being applied to suspension or steering components' is an MOT faliure. :sleep:

Matt

[wrenchnride247]

The hard part I found was getting the wheel hub off so I could get the bearing out. I had to remove the snap ring and press the bearing out with the hub still on. Then the hub came off easier.