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Topic: Rear Wheel Bearing (Read 1066 times) |
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mr._floppy
Junior Member
 
Posts: 100
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Rear Wheel Bearing
« on: Jul 16th, 2006, 6:17pm » |
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I'm going to have a crack at replacement of N/S rear wheel bearing, a few questions:
What size is the big nut ?
Is it a clockwise untighten or just normal ?
Will I need a puller to remove old bearing from carrier ?
Will I need a press to install new one ?
Ta.
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Rear Wheel Bearing
« Reply #1 on: Jul 16th, 2006, 6:33pm » |
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I can't remember the size of the hub nut, but I remember the N/S undoes clockwise.
The bearings are packed on pretty tight so a puller to remove them & a press to put them back on would be a good idea. But if you have plenty of time on your hands you could put the whole hub (with bearings) & the new bearings in the freezer overnight. By the morning they should have contracted enough to be able to tap the old bearings off & to tap the new bearings on. 
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Rear Wheel Bearing
« Reply #3 on: Jul 16th, 2006, 11:00pm » |
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Just remember, when you put it all back together the hub nut has to tighter than tight, i.e. large breaker bar & a scaffold pole 
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tommy1340millar
Junior Member
I'm a YaBB newbie!
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Re: Rear Wheel Bearing
« Reply #4 on: Jul 17th, 2006, 1:30am » |
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on Jul 16th, 2006, 7:13pm, Meg wrote:
is it not 41mm, same as sierra?
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Simmo
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Re: Rear Wheel Bearing
« Reply #5 on: Jul 17th, 2006, 6:29am » |
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I think you could both be right !. When I changed mine the one fitted was 32mm but the replacement is 41mm. The best advice is (a) use a proper 'wind back'tool to retract the piston. It does NOT just push back. (b) Be sure to fully tighten the nut as said AND then check it again after a couple of hundred miles. The torque setting is 200ft/lbs and this is way beyond the average DIY torque wrench. This thread may assist.http://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl?board=Problems;action= display;num=1145217961;start=7#7
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Snoopy
Administrator
Very old.BAD tempered and missing friends.
Posts: 6278
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Re: Rear Wheel Bearing
« Reply #6 on: Jul 17th, 2006, 8:41am » |
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The NEARSIDE rear Wheel bearing loosens ANTICLOCKWISE. the hub nuts on the rear wheel bearing on the scorpio are NOT left and right handed...
On the nearside the nut always has a tendancy to undo which is why the use of STRONG thread lock is recommended and 200 ft/lb torque.
recheck after a few miles.
And the nut size is 32mm
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mr._floppy
Junior Member
Posts: 100
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Re: Rear Wheel Bearing
« Reply #7 on: Jul 17th, 2006, 9:53am » |
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Thanks for all the info.
Since the hot weather started I've noticed a speed related squeak from the N/S rear end and although the raised wheel is rock solid and free to turn I'm suspecting the infamous rear bearings . I'm eliminating the O/S one coz it was replaced a few months ago.
They are the original fitments, so at 89K I suppose they are due for
replacement.
So apart from the propshaft bearing or UJ's ( unlikely ) it's the only
culprit to blame for the squeak.
I've ordered the bits, the only problem is I ain't got a big socket or
a long enough socket bar extension. 
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mr._floppy
Junior Member
Posts: 100
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Re: Rear Wheel Bearing
« Reply #8 on: Jul 18th, 2006, 2:48pm » |
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 I've had to admit defeat.
After 3 hours in the blazing sun I couldn't get the bearing cage or the hub carrier off.
Firstly I mangled the bottom 2 bearing cage securing bolts ( I must've been using a worn 13mm socket ) Then, I thought I might be able to just replace the hub carrier, so, after spending a tenner on a hub puller, I couldn't even get that off. 
I have to say though, even if I had succeeded in getting the cage off , I doubt that I would have got that hub off, it was sure stuck on real tight.
So, like Shackleton, better to turn back and and live , than to go on and die ( summat like that anyway ) I put it all back together again and if the noise gets any worse I'll get a professional to do it.
( although he won't thank me for the mangled bolts ) 
Now I think I deserve a long cool Lager 
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mazzy_j
Full Member
Posts: 664
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Re: Rear Wheel Bearing
« Reply #9 on: Jul 18th, 2006, 3:06pm » |
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Did you drown it all in WD40? When i did mine i jacked it up and drowned all the bolts in WD, re-applying every couple of hours. I did this the day before i actually replaced them (seeing as the car wasn't going anywhere). Still managed to mangle a couple of the carrier bolts and had to hacksaw off 1 of the calliper bolts and then knock the thread round with a cold chisel.
To prevent further mangling i used a half inch socket, worked a treat. And a gentle tap from a 'persuader' loosened up the hub and freeing it from the splines
Matt
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howiedintheplace
Senior Member
Based near Evesham
Posts: 1194
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Re: Rear Wheel Bearing
« Reply #10 on: Jul 18th, 2006, 4:17pm » |
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You should get a spanner on them bolts & tap them with a hammer to loosen them off.
Most times you don't even need WD40.
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Dave
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Rear Wheel Bearing
« Reply #11 on: Jul 19th, 2006, 2:06am » |
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Quality sockets, a good breaker bar & a strong right leg should have got it off 
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mr._floppy
Junior Member
Posts: 100
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Re: Rear Wheel Bearing
« Reply #12 on: Jul 19th, 2006, 9:35am » |
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After a troll through the interweb thingy, I found special bolt grip
sockets designed to remove rounded bolts .
Or I could
just hacksaw the last bolt head off , remove the bearing cage, and
there should be enough of the bolt shank showing to remove
with pliers.
I wish I had thought of that yesterday when the
the thing was in bits 
It's the heat , it fries your brain.
I'll give it another go when the weather gets cooler .
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VSBlue
Junior Member
scorpio 2.9 v6 12v Saloon
   
Posts: 69
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Re: Rear Wheel Bearing
« Reply #13 on: Jul 22nd, 2006, 5:58pm » |
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i did the rear wheel bearing on my 2.9 scorpio the nut size that came off was 32mm the new one that came in new kit was a 40 mm
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