Hi all.

I'm replacing the rotors and bearings on my '67 122s. This is the first time I've done this so I hope you all will forgive my ignorance but I'm having trouble getting the sealing cup (oil seal #88640-8) into the back of the rotor and I was wondering if anyone had any tips on getting the thing to fit. Also the exploded view shows the roller bearing cups and I have the cups but I don't understand how or if they fit into the rotor and and I don't recall ever removing roller bearing cups from the old rotors. Any help or additional direction would be extremely helpful, thanks in advance.

- Nate

Hello,

Did you buy new complete rotors with hubs and studs or just the rotor by itself?
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Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90501

I purchased the complete and might I add VERY expensive rotors. Hope that helps.

- Nate

Hello,

As you noticed, the new complete rotor assemblies already have new races(cups) installed.

Therefore installing new races is not necessary at this time.

Did you install the non-necessary races on top of the races already installed in the assemblies?

Did you buy the bearings from Volvo or from someone else?
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Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90501

Eric:

Thanks for clarifying on the races, that is what I figured. I have not installed the races as it appeared that they would not fit. The bearing kits are Volvo.

Any tips on getting the oil seal to fit? I've tried moderately tapping it with a rubber mallet but I'm leary of damaging the seal.

Hello,

Did Volvo sell you all metal front seal with a felt seal or a rubber type lip seal?

If you got the felt front seals, I just tap them in lightly with hammer and a flat piece of metal that is large enough to cover the entire seal but small enough to fit insde the rear area of the rotor. The idea being to tap the seal in evenly. I do not use any grease or lube on the outside of the seal, but I do lightly grease the felt of the seals before installing.

After you tap in the seal, make sure that the inner bearing is not pinned tightely into the race. You should be able to move the bearing in and out a little once you are done installing the seal.

If the bearing has no play, use one of your spindles and the bearing retaining nut as a slide hammer to move the seal away from the inner bearing race. You may have to tap the seal back in or you might pull the seal and bearing all the way out, so you might have to re-install.

Make sure that whatever you use is clean and free from debris that might fall into the grease filled hub.

And speaking of grease, you should not fill the inside of the hub completely with grease, but do put in a healthly coating inside the hub. I recommend enough grease so that when you stick you finger into the side of the grease that it covers your finger nail.
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Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90501

Howdy,

Go to http://volvoamazonpictures.se/ and navigate to the Documents and Service Manuals. Get the Green Books for the brakes and front suspension and steering. All should become much clearer with the pictures and procedures in those books.
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Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 52 year old fat man.

Hi Shannon:

Thanks for responding. I have consulted the manual, but maybe I'm missing something. I don't think that I use the roller bearing cups but since they were included in the bearing kit, I thought I should know when and where they are used (if anybody knows). The oil seal, I just can't seem to know how to get it to fit. Thanks for your input though.

- Nate

Nate,

I recommended the Green Books before I actually looked at them. Kind of thin information about race installation there, eh?

I gather from your posts that the original hubs have already been returned as cores, true? You probably did not notice the races installed in the hubs. You definitely do need the races and the seals sent with your new hubs.

I learned to install races by watching my dad. If he led me astray I am about to mislead you as well. If there is a more "correct" method, I am unaware of it. ;-)

The outer races, or cups, are interference fit into the pockets machined into the hub to receive them. The open side of the races face outward to accept the bearings. The races are installed by simply tapping them into the machined pockets.

Work with the larger inboard race first. Keep everything clean and grease everything thoroughly as you go. Start the race into the pocket with your fingers and make it as square to the bore as you can. When you can no longer push with your fingers light hammer blows will be required. If you have an appropriate bearing driver, you are home free; just square it up and drive it home. If not, use the hammer handle to gain a little more. Else, the drift method mentioned next will cause the race to kick out. When no bearing driver is available use a drift on the edge of the race to seat it home. Using very light blows, tap first on one side and then the other. Work around the perimeter of the race to keep it square to the bore. The deeper the race seats, the more force you can use without causing the race to dislodge or get cocked in the pocket. Inspect the progress from the backside of the race you are working with. Continue working it until the race shoulder is seated fully home.

Install the smaller outboard race in the same manner.

The inboard bearing must be installed before the seal. Pack the bearing and just set it into the cup. Grease the seal and tap into place from the backside of the hub. Use a big socket or what-have-you to seat it home.

Fill the cavity of the hub with grease. Err on the side of too much rather than too little.

Installing races is kind of something you have to do to understand. Until you do this all these words will not mean much. It will all become apparent as you proceed. I hope. ;-)
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Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 52 year old fat man.

Really good info, thanks Shannon. It appears that the races came pre-installed on these hubs, so I get to skip a step but it's good to know for future reference.

Are you suggesting a socket wrench to tap in the oil seal?

- Nate

Use a large socket near to the diameter of the seal as a driver. Grease the seal thoroughly set it in position. Place the socket on the seal and tap the back of the socket to drive the seal into place.
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Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 52 year old fat man. ;-)