Cinquecento Cinquecento rear hub/bearing replacement

[levemircento]

NO EDIT BUTTON!! ?

You granny could do this job, but cracking the hub nut loose might give her a hernia!!

 

[custard]

if you need to edit,pm me the details and i will edit accordingly

 

[falloutdom]

i need to change the back plate on mine but i cant get the soddin 30 mm nut off i hav jumped on it and everthin with a bar
i done one side but the other side dont seem to wna turn
any ideas???

thanx

 

[levemircento]

i need to change the back plate on mine but i cant get the soddin 30 mm nut off i hav jumped on it and everthin with a bar
i done one side but the other side dont seem to wna turn
any ideas???

thanx

use a long bar [something like a 4 foot length of scaffold] over a 1/2" drive socket [or bigger] and suitable T bar, undo in the normal direction, it will come undone!

 

[ycming]

hmm ... have the car on the road, put the 30 mm socket in and a breaker bar, and just stand on it for like 10 - 20 seconds, then the hub nut will be lose, no long bar needed no nothing.

Remeber just stand on it, don't bounce about, let me come losse naturally.

Just recently done this , because i needed to take my rear trail arm out

Ming

 

[Smiler121]

Guide doesn't mention using grease?

 

[levemircento]

Guide doesn't mention using grease?

the bearings are normally sealed units which already contain the slippery messy stuff

 

[Dan]

Wheres the cheapest place people have come across for replacements?

 

[levemircento]

Your local motor factors will either have them, or be able to obtain them for a good price.

I got mine from Andrew Page LTD which are a large factors in the north west, I think I paid £18 ish


You can get them off ebay, but when you add in the postage it might not appear as good a bargain.

 

[blackledge]

i need to change the back plate on mine but i cant get the soddin 30 mm nut off i hav jumped on it and everthin with a bar
i done one side but the other side dont seem to wna turn
any ideas???

thanx

Did you get the nut off in the end mate?

 

[willismeiwas]

hi,this bit just caught my eye whilst searching some advice via the web


"Refit new hub to stub axle, replace the large washer, I had to reuse the old nut - which upon inspection was sound, due to the new nut having too large a thread"

i've read a few different places that the nut should be replaced by a new one or your wheel "WILL" fall off !!,it sounds stupid as there's no retaining device on the nut or the stub axle,does anyone know how true this is as i removed the hubs regreased and replaced them after having a rumbling from the rear and i didn't replace the nuts,now everytime i drive it i'm half expecting my wheel to overtake me and i can only find them for sale as part of the kit which i don't need the whole lot it'd be an expensive nut

by the way great forum i'll get myself over to newbies shortly

 

[levemircento]

The torque that the nut is tightened to, is so huge that the chances of the nut failing in operation is slim [or, it coming loose], if the nut does fail it will probably do so when tightened, either due to a worn thread, or fracture of the nut itself.

I would always recommend a new nut is used, however in my case on the above project I trust my own judgement and my own work if deciding to reuse an existing nut.

 

[willismeiwas]

The torque that the nut is tightened to, is so huge that the chances of the nut failing in operation is slim [or, it coming loose], if the nut does fail it will probably do so when tightened, either due to a worn thread, or fracture of the nut itself.

I would always recommend a new nut is used, however in my case on the above project I trust my own judgement and my own work if deciding to reuse an existing nut.

thanx for the prompt reply but i'm a little confused as one min you say you recommend replacing it yet you didn't do so
so could you share you knowledge with me?would i be right in saying if there was no sign of a fracture and the nut was done to the correct torque then it would be perfectly safe to use the old one,i've done other cars over the years and the ones i've done they've normally got a castle nut or the key in the shaft to enable you to tap the head of the nut into the key to stop it undoing,it's just i've never come across such hub nut with no way of ensuring it don't come undone

thanx in advance

 

[levemircento]

What I am saying is, yes, I reused my existing nut, as I was happy to do so given its condition and was satisfied that it tightened up ok.

In your situation, if you are not happy that you reused the nut, and think the wheel is going to come off, then stop driving the car and get a new nut, I cant say if its right or not for you - thats a decision you have to make. You should be able to buy the nut on its own from Fiat.


If somebody brought a car to me, to replace a hub, then a new nut would be fitted and tightened to correct torque.

 

[willismeiwas]

if you are not happy that you reused the nut, and think the wheel is going to come off, then stop driving the car and get a new nut

If somebody brought a car to me, to replace a hub, then a new nut would be fitted and tightened to correct torque.

sorry i think there's been some confusion,i don't think the wheel is going to fall off,it's just what i've read and just wanted to clarify my judgement that there is no technical reason for someone to claim it will come off if it's re-fitted according to the torqe specs

as for someone elses car then i totally agree with your judgement there,thanx for the time you've taken to reply

 

[007fiat]

How do I check to find out if they need replacing, the sound, the wheels wiggle, the wheels fly off, or all of the above or something else?

 

[levemircento]

this is my summary of your question

a failed bearing may make a deep humming/rumbling sound while you are driving along, the noise will vary with speed

or, it could have play in it, ie, be loose, jack up the wheel in question and grab each side of the tyre, either at 12 and 6 o clock, or 6 and 9 o clock positions, and try to wobble the wheel, if there is play you will feel it

I doubt things will get that bad that it will make the wheel fall off, dont think thats possible at all

 

[custard]

this is my summary of your question

a failed bearing may make a deep humming/rumbling sound while you are driving along, the noise will vary with speed

or, it could have play in it, ie, be loose, jack up the wheel in question and grab each side of the tyre, either at 12 and 6 o clock, or 6 and 9 o clock positions, and try to wobble the wheel, if there is play you will feel it

I doubt things will get that bad that it will make the wheel fall off, dont think thats possible at all

its was a failed bearing that caused sammis massive coupe smash
never underestimate the importance of getting them fixed

 

[DaveMcT]

Does anyone know if new bearings can be fitted into the original hub?

Are they standard SKF parts or Fiat specials?