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P4 rear wheel bearings

 
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paulhide
P4


Joined: 20 Dec 2003
Posts: 1607
Location: Oh Beautiful Billingham

PostPosted: Thu Jul 06, 2006 9:05 am    Post subject: P4 rear wheel bearings Reply with quote

Has anyone changed these? Is it an easy job?
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tvatavuk
Gold Cloverleaf


Joined: 13 Mar 2003
Posts: 673
Location: Split, Croatia

PostPosted: Thu Jul 06, 2006 10:52 pm    Post subject: Reply with quote

Pain in the a?? Smile
I have one with ABS which is even more Smile

Rear wheel bearing is fixed on rearwheel drive half axle.
So you have to take out whole axle with hub, bearing is inside hub and is fixed from diff side by 1-2 rings and nut.
Ring has to be heated to be removed or put in place on axle.

Puting new bearing on axle is also no easy task.
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Tino Vatavuk
Little black dress which replaced Alfa Romeo 33 S 16v Permanent 4 GMo
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paulhide
P4


Joined: 20 Dec 2003
Posts: 1607
Location: Oh Beautiful Billingham

PostPosted: Fri Jul 07, 2006 9:26 am    Post subject: Reply with quote

Garage job then. Sad Thanks again Tino. I've got a spare axle, but it looks like you need very short allen key to get calipers off!
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tvatavuk
Gold Cloverleaf


Joined: 13 Mar 2003
Posts: 673
Location: Split, Croatia

PostPosted: Fri Jul 07, 2006 1:17 pm    Post subject: Reply with quote

Yes I also had garage do it.

On my P4 ABS equiped,
te remove just calipers for fittment of new brake pads you need 2 keys no 13 and opent key/fork no 15.
to remove whole brake mount and calipers from hub you need hex key no 7. I had no8 which I modified at home with rasp since it was sunday, but later I bought racket wrench add on.
I don't remember which key was neded to remove hub from rear dif tube.
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Tino Vatavuk
Little black dress which replaced Alfa Romeo 33 S 16v Permanent 4 GMo
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Edward
Alfa 33


Joined: 21 Sep 2003
Posts: 307
Location: Bristol

PostPosted: Mon Jul 10, 2006 11:18 pm    Post subject: Reply with quote

Paul,

I did it a while ago on Alex's car. Do you know of Alex - Dave has met him.

I had a spare P4 rear axle - and after removing the rear caliper - can't quite remember how I did that with the tight fitting allen keys, but what we did was just change over the rear drive shaft. You have to locate the splines as you push the rod back in but all in not too difficult. This saved a lot of hassle with bearings etc.

Perhaps a bit of a quick and easy fix - but why not!

E.
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paulhide
P4


Joined: 20 Dec 2003
Posts: 1607
Location: Oh Beautiful Billingham

PostPosted: Tue Jul 11, 2006 8:56 am    Post subject: Reply with quote

Yep, that's exactly what I'm planning, Ed. Stedee sold me a rear axle and I've bought a 7mm hex bit to shorten and put a spanner around for the calipers. I only hope they come off okay and don't burr on the inside. Confused
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Edward
Alfa 33


Joined: 21 Sep 2003
Posts: 307
Location: Bristol

PostPosted: Wed Jul 12, 2006 9:17 am    Post subject: Reply with quote

Paul,

Yes I did something like that from memory, either cut down an allen key with the grinder or cut the end off one and put a 7mm spanner around the bit and then a further lever on that. I may have been able to get a small ratchet in but I can't quite remember. Anyway, with some good careful leverage and a good couple of sharp blows with the hammer on the caliper as torque was applied they did slowly turn without rounding off at all. As you say a new allen key is a good start.

After that it is a strip down and simple replacement. Remember there is what seems to be like a thin paper gasket when you remove the bolts from the hub, that surround the shaft. I managed to salvage one of the two available and put it back. When putting the drive shaft back in you have to lift / wiggle the end so that it goes into the drive socket at the hub end. As the splined end of the shaft is tapered it does goes in, but just looks like a bit of a worry when you first pull out the drive shaft.

If you need any tips let me know.

E.
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paulhide
P4


Joined: 20 Dec 2003
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Location: Oh Beautiful Billingham

PostPosted: Wed Jul 12, 2006 9:34 am    Post subject: Reply with quote

Think I've got part of the prop aswell so should make things a little easier, but first I've got to get my red TI going and that's another story of stripped exhaust stud holes and stepped studs Exclamation Cheers Ed.
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Matt Stolton
Alfa Sprint


Joined: 14 Mar 2003
Posts: 233
Location: London

PostPosted: Tue Jul 25, 2006 8:51 am    Post subject: Panic Not Paul Reply with quote

Helicoils mate, that is the answer for holes with no threads. True you have bend over to help pay for them, but better than cracking the block, and probably stronger than the original threads.

Perhaps they should do a virtual Helicoil for forums with no threads Laughing
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Ex Alfa 33 'GTA' (P4 with Knobs On)
Now cruising in a 166 3.2 Ti!!
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paulhide
P4


Joined: 20 Dec 2003
Posts: 1607
Location: Oh Beautiful Billingham

PostPosted: Tue Jul 25, 2006 9:07 am    Post subject: Reply with quote

Tapped a 10mm thread in place of the 8mm one and made a stud half 10mm half 8mm. Worked fine, cost me 5 quid. Very Happy
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