two seals per hub and a ton of new grease and new circli[p if you nadger it getting it out ..its a big bugger
i have just taken the castle nut and drum off , i have spun the hub but it sounds smooth no noise nowt ?. there was/is no rumble when i drive it just a constant squeal , when i wobble the wheel on the hub it has some play but other than that no signs of wear or rubbing -- stuck now , do i change the wheel bearings or just tighten it more , could have been the torque wrench that the garage used to tighten them a few weeks ago hadn't been calibrated recently .
Torquing the castle nut doesn't tighten the bearings unless it was finger tight when you took it off Malc. I went through similar with a friend's bus - Noise didn't happen all the time, but it was alarming when it did. I couldn't get it to make the noise what ever I did unless I was driving. In the end having tried everything else I changed the bearings and it stopped. The bearings looked 100% ok when I removed them too. Bit of a mystery. Squealing sounds about right. I say change the bearings and see what happens.
I suppose its the load , when the wheells take the strain it transfers to the bearings , unloaded its fine , better get busy tomorrow
When the weight of the van is on the wheel, the load zone on the outer race is at the top. This is the common place for defects to start, which gradually get bigger, spall off the hardened bearing surface to leave a rough finish = noisy rumbling sound. If you jack up the van, the wheel (or just the hub in your case) is hanging on the bearing, so the load zone on the outer race is at the bottom - the bit that's nice and smooth and unworn. It's not surprising that it feels smooth when you spin it, because it is smooth on that part of the bearing.
i put it all back together without doing the bearings , i had to use the van today to take my lad and his stuff to uni , but cheers . btw , how do you actually get the bearings out , what sort of tool , chisel or screwdriver or what , just asking as i have never done them before .
oh come on ....bearings , chisel, screwdriver should NEVER be used in the same sentence ;D ;D.........They are sharp and likely to damage the hub ,you can use a suitable puller or drift to get them out . The trouble is getting them in nice and square , if you just !@*# the new one it any old how it won`t be long before your doing it again
You can knock them out with a hammer and pretty well anything to hand. Drift is a fairly all-encompassing term? Probably hot a chisel though. Then you knock outer from inside, there's a ridge it sits against so don't bash away on that as you'll get nowhere.
Both sides came up as an advisory on the mot as they have play in them .I have checked for play .and I'm now waiting for bearings from heritage .
The garage that did the MOT works on VAG stuff and does a a few campers ,the question now is how much play should there be , and if i tighten the nuts will i risk makeing them to tight without a torque wrench, i have had a look in Haynes and bently but cant find anything about play
The rears aren't taper bearings, so doing up the nut more won't have any effect. As Zed said, there may be a bit of slop in them that may disturb the MOT man, but is normal.
