Rubbing my shaft

dominicbeesley · Mar 31, 2014

Oooo er!

Dismantling the back axle of my 109 I noticed that it looks like the offside half shaft has been grinding away at the stub axle. Is this a fairly normal thing on Salisbury Axles. If so what do I do to stop it happening. I'm guessing that it is due to either the axle being off-centre in the flange or the flange being off centre with respect to the hub as it is only one side of the shaft that is worn but evenly worn around the stub-axle.

The other side looks to have been doing the same in the past but not recently: rusted up shaft but lots of score marks and loads of swarf in the stub axle.

I'm going to replace the stub axles, should I also replace the shafts and bearings? (The bearings seem fine, no play, no pitting, lands look good and Timken).

D

joe27979 · Mar 31, 2014

how do the halfshaft splines and drive flange spines mate? nicely or loosely?
Any wear in either of those could give you a bit of movement im guessing.

dominicbeesley · Mar 31, 2014

I didn't get as far as stripping them down. They felt ok - end-float (as epected) but not too sloppy. However, if it was loose in the flange I'd have thought it would be clattering on all sides..

It does seem like there's not a lot of room for error between the half-shafts and the stub axle on these. Is there a "knack" to setting them before nipping up the flange bolts?

On the SWB ones there seems to be more margin for error and I just slap em in and do the bolts up...

Oldseadog · Mar 31, 2014

... And there was me thinking about the possibility of you and that young barmaid ...

However, I digress!

You should not be able to get the shaft to score at all under any condition! The only way that I could see it happening is if you have somehow managed to rn the shaft so far off centre that it is rubbing against the axle tube!

However, if you have centred the hub, inserted your shaft, and then put the flange on, then finally the circlip, and as far as I can see, if can't happen ... unless the tube is damaged?

dominicbeesley · Mar 31, 2014

Mmm, this is the 109 I bought - I've not run it myself so far I'm just dismantling it. I wonder if the back axle is bent then?

Oldseadog · Mar 31, 2014

Bear with me Dom, coz I've just had a bit of a thought ...

What if the axle has been completely stripped down and rebuilt, is it remotely possible that the diff has been put back in upside down?

This might seem a simple question from a simple guy, but I've never stripped a Salisbury down, so I don't know!

Grasping at straws

Thor1950 · Mar 31, 2014

Thought this might of been a advert for KY..

Oldseadog · Mar 31, 2014

Thor1950 said:
Thought this might of been a advert for KY..

It's known as KY Jelly over here!

In't jelly what you lot put on your toast??

jamesmartin · Mar 31, 2014

for shaft to be marked on one side ,shaft would have to be bent ,not case or stub axle

Oldseadog · Mar 31, 2014

It looked as though it was scored all round ....

dominicbeesley · Apr 9, 2014

Sorry, I lost track of this. It is marked on only one side, both shafts similar. Now I've thought about it the only explanation I can think of is either bent (they seem pretty straight but not had the laser out to check em) or more likely the flange mounted off centre or the shaft mounted off centre in the flange.

I completely forgot to look at them when I was at the garage this afternoon - will have a better look at the weekend.

Oldseadog · Apr 9, 2014

The only way that your shafts could be off centred is if the flange splines arre off centred ... and I honestly can't see that happening with both, can you?

dominicbeesley · Apr 10, 2014

I don't know, with the bodges I've found so far it could have been bodged in any number of ways. I suspect it is just worn splines, will have to strip down and have a look....

dominicbeesley · Apr 13, 2014

Well, I had another look at these this afternoon. The longer shaft wasn't actually rubbed too bad I think it was actually just shinier on one side after being sat in a pool of oil while stood..

The shorter is very scored. It doesn't look bent but I've no longer got a lathe to check it on! However I found that the splines in the flange were very worn and also that on the back of the stub axle there was a large lump of swarf between it and the main axle which must also have put it off true. Also there was a lot of thick paint and swarf on the back of the flange where it mates to the hub which means it would have been to cock.

It must have shook like a good un a speed...

Oldseadog · Apr 13, 2014

Fingers crossed!

Rubbing my shaft

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