Register Login
FIAT Auto Specialist Team
Comment
 
Guide Tools
<!-- google_ad_section_start -->punto rear hub/wheel bearing replacement<!-- google_ad_section_end -->
punto rear hub/wheel bearing replacement
wheel bearing
Published by chriseo
21-06-2012
Difficulty Level: 3

User Rated:
Difficulty Level: 1

Show Printable Version  Email this Page 
punto rear hub/wheel bearing replacement

ok so today i changed my rear wheel bearing so i thought id write out a guide as i could not find one on here. this is how i did mine.

take the rear wheel off, using either your cars wheel brace and jack or your own, i used my own for this job as is easyier, chock the front passanger and rear drivers wheels to stop the car moving forward as you need to leave the hand brake off to help get the drum off easily.

once you have the drum in front of you give it a sping, giing it gentle taps witha hammer to loosen any debrey inside and will help get the drum loose.

next you will see 2 pins coming off the drum with a 12mm nut head on them, undo these and place in safe place to the side.

once you have dont that you can remove the drum, i find moving it left and right gently and pulling get them off easily. once the drum is off just give it a quick clean with some wet and dry blow brake dust out and set to the side.

once the drum is off you can now see the hub directly in front of you, there is a cap covering the nut get a flat screwdriver and a hammer and gently tap around the edges till it eases off, keep that safe.

now you can see the 32mm nut, for this i used socket and a 12v impact gun, (if you dont have one, i suggest in time investing, it is my savior as i dont have to use a bar, cost !9:99 from argos 4 years ago, brillant tool), once you have undo the nut you can put this aside you probably wont need it as your new kit comes with a new nut.

you can now slide off the old hub, it can be abit stiff but turn gently left and right as you pull it comes off easy youl see theres a washer inside, you need to keep this, give it a clean and also you will see a spacing washer at the back do the same with this also.

now get your new hub and gently put some greese inside the edge of the seal and the rim of it and the back, as im abit anal and it wont hurt it, as i noticed the old one had been done the same too.

you can gentle smear greese on the spindle if you want too, help keep it good. re position the rear spacer back onto the spindle and now go ahead and gently ease on your new hub once fully on, put your other washer inside the hub as reverse of what you did to take it out.

now put your new nut on and tighten it down with your 32mm socket and racteht by hand till you feel it nip up, take a torque wrench and set it to 280NM and tighten your nut with your torque wrench till the aquired torque is set.

again cuz im mad about doing things nice and safe, take your brass cover your took off at the start covering the nut, clean it up and smear greese gently inside not to much but some, and some around the outer edge of the cover, gently tap this back on, do it slowly and evenly no need to go crazy.

next replace the drum back on sometimes these can be annoying but take your time and it will go ok, make sure the holes from the drum all align correctly to the new hub you replaced. take the 2 12mm pins your took off and replace, tighten this up accoringly.

now replace the wheel and torque all your wheel nuts to rigth setting, double make sure wheel bearing spins freely and drum isnt catching by spinning your wheel and check there is no play now from the bearing, if all ok set your car back down and your all done, remove the chocks reapply hand brake.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs

Old 30-11-2012   #1
Join Date: Sep 2012
Posts: 11
Thanks: 1
Trader Rating: 0
Mexico 
Cool Punto 1, rear hub/wheel bearing replacement.

Quote Originally Posted by chriseo View Post
take the rear wheel off,
If you don't have an impact gun, and you must use classic tools (socket with some heavy extension bar), car should be still on all 4 wheels when you are trying to loose the nut (32 mm). If it's done (nut is loosened), then take wheel out.

Quote Originally Posted by chriseo View Post
once you have the drum in front of you give it a sping, giing it gentle taps witha hammer to loosen any debrey inside and will help get the drum loose.
There are methods, to get drum off, without tapping it with hammer (harmful to bearing).
First you must loose the shoes self-adjuster. Shoes can hold the drum (despite of rust on central hole). Through the wheel screw hole in drum, you can loose it using screwdriver or something like that. Find it, push it, and shoes will move out away of drum.


When you have removed the small drum (12 mm hex) bolts (M8 threaded), there will be threaded holes in the drum itself. There's M10 normal thread. You can take off drum using bolts screwed in (it will act like puller/separator). Drum will be pushed away from hub.


Or you can use slide-hammer (don't buy fancy tools, improvise, like in this example, it's body-building weight) and knock the drum off (a bit better than punching drum with regular hammer).


Quote Originally Posted by chriseo View Post
once you have undo the nut you can put this aside you probably wont need it as your new kit comes with a new nut.
There are kits without new nut, so be careful, don't destroy it, clean it, keep it.
BTW, rear hub for Punto is the same as for Bravo/Brava (1,4 1,6 and diesel 1,8).

Quote Originally Posted by chriseo View Post
you can now slide off the old hub, it can be abit stiff but turn gently left and right as you pull it comes off easy
Easy or not (rusted). If it's "rust-welded", inner bearing ring/race will last and must be cut off.
This is example of rear hub replacement job (not Punto, but procedure is the same).

Quote Originally Posted by chriseo View Post
now put your new nut on and tighten it down with your 32mm socket and racteht by hand till you feel it nip up, take a torque wrench and set it to 280NM and tighten your nut with your torque wrench till the aquired torque is set.
All torque specification charts may be useless, because they basically don't tell what condition of the thread should be (new or used, with lube or dry). Torque isn't tension. Everything depends on thread shape/condition.
Rear hub bearings are double-row ball type. There is no clearance setting (like in cone roller bearings). Just make it real, brutal tight (long extension bar or good, strong impact gun), torque wrench in not necessary here.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides | FAQs


Last edited by pmx007pl; 30-11-2012 at 08:23. Reason: Pointless usage of torque wrench.
pmx007pl is offline Reply With Quote Quote 
Comment
Currently Active Users Viewing This Guide: 1 (0 members and 1 guests)
 
Guide Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Guide Guide Starter Category Comments Last Post
(G) Rear wheel hub bearing Daver Grande Punto 16 27-05-2011 10:23
(G) rear wheel bearing/hub rab10000 Multipla 1 11-08-2009 18:52
(G) Front wheel Hub/bearing replacement Alan.D Panda (Classic) 6 31-10-2005 12:21