steve322s

will be replacing the hub bearings in the nxt month. Does anyone have the tool for pulling the bearings and does this tool also press them back in?

if so is anyone willing to rent it to me and how much?

I believe i have a right rear on its way out and what ive read i should do them both. so if anyone has one please let me know i would only need it for the weekend when im ready. im in NY

My problem is the car has a slight vibration turning left at speeds above 40 and also at 70 on the highway even going straight. it will go away if i let off the gas or put it in netrual and cost.

i have not ruled out a bad CV even tough i had them apart and inspected them then re greased and installed new boots and torqued them.

Thanks, Steve

dr bob

Steve--

Do a quick search on "sir tools b-90" and find that there are two close by in New Jersey. One has been offered for rent, the other may be available for loan.

brutus

However I doubt that you have a wheel bearing problem or that changing them will fix it. The bearings make noise not vibrations and if it is NOT there when you let off the gas or coast it is NOT the bearings.

steve322s

Thanks, Dr Bob

Brutus,

i dont completly disagree however i may not have explained it correctly its more of a humming or growl the a vibration, but all noise comes from vibrations and a bad bearing under load would become louder correct? i dont feel the vibration but my rear speaker starts humming along with the noise so i know its vibrating. i had a similar problem on my wifes cherrokee and it was the carrier bearings fixed the problem great for about 6 months then it came back, outer axle bearings fixed that.

again im not cancelling out other things but i think with 30 year old bearings this would be a good start dont you.

Thanks, Steve

brutus

Try swapping the rear wheels tires many of the agressive tread "performance" tires are M and S rated in otherwords snow tires ! As they wear if cupped they can make wheel bearing type rumble and whine noises. The 928 rear wheel bearings are very robust high quality dual angular contact bearings and last a very long time.

ReDesign by FEATHER

Steve, I think there have been some threads here about changing the rear wheel bearings without taking the rear hub carrier out of the car. I didn't use that approach. When I had just about exactly your same symptoms I found that my right rear wheel bearing was actually not in such bad shape but apparently the axel nut was not very tight and that somehow allowed one inner race of the right rear bearing to hammer the hub down under it. I had to find a good used hub, of course.

I have a hydraulic press, so I just took the carrier out of the car and bought some Harbor Freight tools to use in the press and pressed the hub out of the carrier. What you will find is that when you press the hub out of the carrier it will come out with one of the two inner bearing races still pressed on it.

Another bearing removal tool from Harbor freight was used to press the hub out of the bearing race that comes out stuck to it. Then you have to press the rest of the bearing out of the carrier, from the other direction as I recall. If the bearing isn't destroyed to start with this manuever will destroy it by pressing it apart. You can press it back together, but I'm sure it is shot.

The same or similar set of Harbor freight tooling can also be used to press the whole thing back together with the new bearing. Go there and look at the tooling available after you have figured out exactly what you will need to do the pressing. The total cost of the tooling is not likely to exceed about $75, as I recall; and I may have had some stuff already that was usable to get the hub out. I can't remember for sure.

The other side of the car was not giving any symptoms, but I too changed that bearing also.

Good luck. Wish I was there to try to hep out.

Jerry Feather

dr bob

There's a thread started by Frank Barnhart, last visited a little more than a year ago, with a post offering to rent the tool for $50 for 5 days, plus refundable replacement ment-cost deposit. Guy who offered has only made that one post so no way to validate the offer. Tom (THECLAIRVOYANT) has a B-90 in middle NJ too.

Jerry--
Using the B-90 tool means the carrier doesn't need to come out of the car at all. If I had a press already it might be hard to justify buying the B-90, but if the OP can find one to borrow or rent this isn't a touch choice. One of the locals here who had used mine previously let me know that he liked it so much he bought one used on eBay or Cl for his other car projects. That may be an option for the OP. I might be tempted to put mine for sale, but its seldom here long enough between use to get pictures up and guarantee it would be here when it actually sold...

fbarnhill

That was me 'Frank Barnhill'. I did rent the tool from the guy and we changed the rear bearings on my 88. The reason the thread went dead was the car burned the next weekend right in the garage so I have been working the last year on my new project. Just got her on the road. The bearing job is not too bad with the tool. I pressed the old stuff out, cut the old race with a high speed dremel, had put the bearings in the freezer overnight so they were very cold, and I used the same tool to push the new ones right back in. That was the first time I ever rode in a perfectly silent 928. It was WAY too quiet. The bearings had been roaring so badly that I had no idea how good that car was.

There are several guys on R'list that will either rent it to you or loan you one. Start a new thread and just say 'Need to borrow a B90 tool'. That will do the trick.

Good luck,

dr bob

Sorry bout the name mix up. I'd try and blame it on this finger-keyboard but you guys would see right through that.

I still say this darn keyboard can't spell....

fbarnhill

Thanks Dr Bob. No big deal. My fingers swell so bad I can hardly type sometimes. Plays hell with putting little screws back in the car. You should have seen the fun of my doing my speedo fix and gauge face install. You put a needle on and it falls off, you push too hard and it bends, or the sensor needle pin bends. Isn't getting older fun???

LeRox

Hey Fred,

Missed getting to meet you a couple of weeks back @ Rays, sometime soon we will meet.

As for the B90 tool, is it local?

fbarnhill

No, I rented it from a guy in Texas. I can look back at my emails to find him if needed. I think cPayne and the VA group were going to buy one. We should contact hima and ask. I will send him an email.

TheClairvoyant

Steve,

I do have the B 90 tool.

PM me if you need to borrow it and we'll figure out the details.

I'm in Middlesex County, NJ.

Tom

tmpusfugit

Not certain I agree with that...the quality may be good, and I agree they are dual race angular...but in my limited experience they fail too often....in the 6 928's I have been into the rear spindles on there have been a total of 5 bad bearings..now 2 of those cars were junk yard dogs, but only one bearing was bad in those 4 possibilities, the other 4 were all in well maintained lower mileage later models...all under 100k miles....one car had no failure, one car had 2 bad, and 2 had 1 bad bearing. And when you change one you might as well do both IMO.

I just checked the boneyard, one of the bearings is out of an '84, one out of an '85, one is made in Italy, one is made in Germany, one has a plastic "shield", the other has a metal "shield". I don't know which is which, they both failed, were noisy and showed bluing on the internal bearing race...

soupcan

B 90 For Sale

http://tampa.craigslist.org/hil/tls/2850188629.html