Ford Scorpio Forum - Print Page


    
      
        Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Problems >> Fitting new wheel bearing
        
(Message started by: ChrisF on Nov 19^th, 2007, 7:35pm)

Title: Fitting new wheel bearing
Post by ChrisF on Nov 19^th, 2007, 7:35pm

I am fitting a new rear wheel bearing (n/s) and wondered if anybody has any tips as to how to split the bearing of the axle, I have tried this in the past even using a large hub puller to no avail. Please help.

Title: Re: Fitting new wheel bearing
Post by Tompion on Nov 19^th, 2007, 11:01pm

I assume you have the hub carrier off (or will have) & want to pull the hub out.

The fit of the inner tracks obviously varies, as some people say they’re a sliding/light friction fit. If your bearings are like mine you’ll have a major fight on your hands. The best bet is to find someone with a hydraulic press to remove them.
I used a hub puller & couple of nuts and bolts between the hub & carrier to jack it apart, but it wasn’t easy. Having got it apart I couldn’t get the second inner track off, I even bought an extractor but it wouldn’t move it. I tried modifying a puller to pull on the bearing lip which just had bits of bearing flying off like bullets. I ended up grinding the track off. The outer tracks weren’t much easier.
Putting it back you can heat one cool the other as appropriate, but if they’re as tight as mine, it still won’t be easy.

Dave

Title: Re: Fitting new wheel bearing
Post by jonnycab on Nov 20^th, 2007, 1:49am

on 11/19/07 at 19:35:33, ChrisF wrote:

Put the hub with the bearings still in it & also the new bearings in the freezer for a few hours (I left them overnight). When cold enough, the bearings should just tap out & the new bearings should just tap in....it worked for me :)

P.S...make sure you put them all in sealed plastic bags or it'll stink your freezer out ;)

Title: Re: Fitting new wheel bearing
Post by peteHull on Nov 20^th, 2007, 6:33am

on 11/19/07 at 23:01:07, Tompion wrote:

I ended up grinding the track off. The outer tracks weren’t much easier.
Putting it back you can heat one cool the other as appropriate, but if they’re as tight as mine, it still won’t be easy.

Dave

This is how I removed mine, ??? However {} don't grind the thing too far, just before it has gone through the track, you can then crack it with a suitable chisel....

I did five of them :-/ some were easier than others.

hth

Good luck
pete

Title: Re: Fitting new wheel bearing
Post by Tompion on Nov 20^th, 2007, 8:27am

Mine cracked of there own accord once I got within a few thou of the hub – shows how tight they were.

I don’t see how freezing similar metals will help as everything shrinks at the same rate, like I said with mine I still had to drive them in even after the fridge/oven treatment. I did both hubs & only had one frozen outer track drop into a hot carrier.
One thing’s for certain I wouldn’t have been able to fit the track with the hub resting on a wheel ramp as shown on the website and it would have been impossible to fit the hub with the carrier already fitted to the car.

When you fit the seals make sure you push them right in and don’t damage the outer lip. Mine had only been pushed in so the ridged part was flush to the carrier which resulted in the lips being torn off by the shaft & the shaft wearing through the metal part of the seal.

Title: Re: Fitting new wheel bearing
Post by Snoopy on Nov 20^th, 2007, 8:44am

The Stub Axle shuld knock out . Use a copper headed hammer of a peice of Hard wood and use am ordnary hammer . If its the inner parts of the bearing you are trying to get off the stub axle then either cut off using a small cutter like a dremmel or as suggested take it to a garage and use a hydraulic press.
If the caps are stuck inside the carrier then they WILL knock out with a cold chisel and hammer but is takes time and patience.
. When you get to putting the new bearing in put the NEW Caps in the freezer overnight and the carrier in the oven . the caps shpuld then just drop in or at least tap in like shown in the pictures on the web .

Title: Re: Fitting new wheel bearing
Post by Tompion on Nov 20^th, 2007, 9:22am

There’s obviously a variation in the tolerances on these, I fully accept that most are a simple job, but I think it worth pointing out to people that it may not be simple. I looked at all the components of my hubs with an eye glass & they were as machined – no sign of seizing or anything that would explain them being so tight, they were simply made that way.

Title: Re: Fitting new wheel bearing
Post by jonnycab on Nov 20^th, 2007, 9:48am

Well, all can say is that the freezing method worked for me, although I mean't to say hub carrier & not hub. The hub had to be renewed as it was badly scored :)