Wheel bearing, anyone done one?
Posted 01 December 2006 - 21:51
Has anyone done this job and can offer any advice?
Posted 01 December 2006 - 22:03
Posted 01 December 2006 - 22:04
i have done my own but you will need some pressing equipement if they are like the octavia and make sure you put the bearing into the carrier then the split ring thingy(can't remember its name) and then the hub into the bearing unlike the idiot mechanic that ruined £70 worth of my bearings :mad:
once a bearing has been put in it will get destroyed on removale no matter how old it is.
Posted 01 December 2006 - 22:19
I have changed a front wheel bearing on a B5 Passat - same car as Superb. I would not attempt this job without a hydraulic press and suitable mandrels to support the bearing races. You will also need a Sykes puller to get the inner race of the old bearing off the hub. The whole lot is very tight. Haynes manual 4279 (Passat 00 - 05) explains the job reasonably well.
Posted 01 December 2006 - 23:22
Anyone got a drawing of this they can send me?
Posted 01 December 2006 - 23:44
you need to apply pressure in the right places with a press or a vice and some spacers otherwise you risk damaging the bearing races inside. you will also need some big heavy duty snap ring pliers too
Posted 02 December 2006 - 00:06
A couple of questions,
Is the ouside of the outer race a tight fit into something (hub, carrier(?))
Is the inside of the inner race a tight fit onto something (usually the end of the driveshaft)?
Posted 02 December 2006 - 00:17
tight fit?? in engineering speak it's called am interference fit! or in laymans terms, it's tighter than you could bash it in with a hammer without ****ing it up, also care has to be taken to make sure it is pushed in straight otherwise you could distort the bearing.
the bearing is an interference fit in the bearing carrier, the hib (flange) is an interference fit into the inner bearing race, the inside of the hub(flange is splined to accept the driveshaft, the drive shaft is secure with a self locking nut
Posted 02 December 2006 - 00:30
I'll have a go at it and take it round me mates who has got an even bigger vice than i've got if i need to, i'll post on here tomorrow night and tell you how it went.
Posted 02 December 2006 - 00:36
i would hazard a guess at H7/s6 becuase the hub carrier is cast iron but i could be wrong?
Posted 02 December 2006 - 10:48
Both the bearing outer and inner are a very tight fit on this job - if you adopt the usual trade trick of bashing it in, the raceways will become Brinelled (balls cause indentations in raceways) and the job will have to be done again. This is why so many back street (and a few main dealer) jobs end up being done twice. Go carefully, and don't bodge.
PS. Just taken off the front hubcap on my Superb - it's the same old rusty bolt as on the B5. You'll find it's tight.
Posted 02 December 2006 - 11:09
Posted 02 December 2006 - 16:17
Posted 02 December 2006 - 16:32
Posted 02 December 2006 - 16:36
Have you tried using studding and washers on a B5 front hub?.
yes! it's nearly impossible!
luckily i have a 50ton press in my garage at home:) and even that's not big enough to move some of the more stubborn wheel bearings
Posted 02 December 2006 - 17:35
Mission aborted for today i'm afraid. Tomorrow too, looks like its next week then.