Rear Hub.

Post by **wanderinstar** » Tue Jun 27, 2006 7:51 pm

This morning there was a small pool of oil at side of o/s/r wheel.This rather surprised me as I had changed all oil seals about 2 months ago. Had a quick look tonight, no oil on shoes but bearing seemed loose in hub.
Presume this means new[s/hand] hub or would it be possible to use hylamar or bearing glue on bearing.
Ian.

Post by **les** » Tue Jun 27, 2006 9:07 pm

Sometimes people use Loctite bearing fit if a bearing is not a tight fit, but only if play is not too bad, the bearing and hub must be perfectly clean before using loctite.

Post by **bmcecosse** » Tue Jun 27, 2006 11:33 pm

If it's worn - it's worn ! Don't fiddle about with glue - it won't work. Unless the big nut has come loose - change the hub (or just the bearing) asap - before it ruins the brake linings - which I seem to remember are Wolseley 8" drums (?) - and so will be expensive!!

Post by **les** » Mon Jul 03, 2006 10:09 pm

Don't fiddle about with glue - it won't work

I agree, don't use glue! but loctite works, providing there is no actual 'rock' in the bearing fit, seems like a bodge in a way, although it appears well accepted in engineering terms.

Post by **bmcecosse** » Mon Jul 03, 2006 10:37 pm

Only works with very slight size mis-match. It really won't do anything in this situation. It is just glue. If something is worn it is sometimes possible to make a repair with some of the new plastic metals - Loctite do various versions - but while maybe ok for a water pump or similar, I would NOT suggest this for anything to do with keeping the wheels on the car. If it's worn it's worn - and needs replacing.

Post by **simmitc** » Tue Jul 04, 2006 9:35 am

After checking four separate hubs against old & new bearings I came to the conclusion that new bearings are made a fraction smaller than the originals, and so don't fit properly. The solution is to take a centre punch and use it to dimple all round the inner surface of the hub where the bearing fits. This raises the metal surrounding each dimple by just enough to grip the bearing properly. Remember, you only want to dimple the metal, not drive a hole right through it!

Another example of poor quality modern parts I'm afraid.

Post by **bmcecosse** » Tue Jul 04, 2006 10:25 am

In this case - a smear of loctite bearing fit will help - but it all must be very clean and completely degreased.

Post by **Willie** » Tue Jul 04, 2006 5:43 pm

Assuming that you have the later type rear axle then you should note that
the outer of the hub race should protrude 0.001" to 0.004" OUTSIDE the
hub surface so that it is firmly locked in position by the half shaft flange when
it is attached. The half shaft flange is only held on by one screw, then by the
two brake drum screws and finally by the wheel nuts so for the outer of the
hub race to be loose all of these fixings must have been loose too. If you are
talking about the inner of the ball race then the above is of no interest to you
whatsoever!!

Post by **les** » Tue Jul 04, 2006 9:12 pm

In this case - a smear of loctite bearing fit will help - but it all must be very clean and completely degreased.

Make your mind up man!! One minute it's crap then you recommend it!
btw enjoyed the joke about centre punching the outer race!

Post by **simmitc** » Tue Jul 04, 2006 9:51 pm

btw enjoyed the joke about centre punching the outer race!

Who's joking? It's a perfectly acceptable, tried and tested, solution. If you had the equipment you could use a lathe to put some knurling in there instead, but most people work on the centre punch.

Post by **les** » Tue Jul 04, 2006 10:29 pm

How do you know that the amount you raise the metal is exactly the same all the way round the bearing? Which it would need to be in order to keep it central in the hub.

Post by **Scott** » Wed Jul 05, 2006 1:49 am

simmitc wrote:The solution is to take a centre punch and use it to dimple all round the inner surface of the hub where the bearing fits. This raises the metal surrounding each dimple by just enough to grip the bearing properly.

That's not a solution, just a quick fix to get you out of trouble

.

Post by **bmcecosse** » Wed Jul 05, 2006 5:59 am

Loctite is no use to take up wear that will be uneven around the rim of the bearing housing - if it's worn then it's worn - it IS useful and acceptable where there is a constant very slight clearance around new parts. It's not a cure-all, and neither is the punching - both can help to solve the problem in the right circumstances (and hands). But it is obviously better to have correctly fitting parts in the first place - if this is not possible because of tolerances on parts these days - then needs must!

Morris Minor Owners Club

Rear Hub.

Rear Hub.

rear hub bearings