What should it look like inside a locking hub

[TroyaCantrell]

So I think I have a brake hanging/ grabbing on the front driver side so I am digging in. When I got the outer locking hub off I see a lot of grease, but it is thin, runny almost. Is this normal?

I am going to go all the way in and check things out but it seems like the lube should be behind a seal.

There is also what looks like RTV between the outer and inner hubs is this normal?

Troy Cantrell
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Build thread - '66 CJ6 :
http://www.jeep-cj.com/forums/showthread.php?t=15075

 

[TroyaCantrell]

Oh and how much in-out play should the shaf have , it move on and out about 3/8"?


Troy Cantrell
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Build thread - '66 CJ6 :
http://www.jeep-cj.com/forums/showthread.php?t=15075

 

[CJim7]

grease breaks down over time....so what you are experiencing is normal really, just re-grease the components but don't pack grease too heavily where the coupler assembly engages...it can cause partial engagement and lead to damage, or a lack of engagement completely.

The play you have on the shaft is normal.

 

[tarry99]

Oh and how much in-out play should the shaf have , it move on and out about 3/8"?


Troy Cantrell
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Build thread - '66 CJ6 :
1966 CJ 6 build - Jeep-CJ Forums

Troy, 3/8" of an inch of play on the shaft??? Is that correct? Way to much in fact the bearing should have some pre-load.......the bearings are probably shot.

 

[TroyaCantrell]

The play is in out, not side to side and I got the tape on it and it is only 1/4". There was not much side to side. It all did seem pretty loose though, I don't know what I thought it would be like but tighter I guess.

I got the hub and spindle off and everything looks good. Bearings, races, all the surfaces look fine. Haven't gotten in as far as the king pins yet.

I was hoping to find a broken spring on the brakes or something but they look fine. So I still don't know why it is grabbing so hard.

With all this apart I am looking at a disk conversion but it wasn't really in the budget right now.

So what is the mixture in the knuckle anyway just a combo of bearing grease and fear oil?

Troy Cantrell
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Build thread - '66 CJ6 :
http://www.jeep-cj.com/forums/showthread.php?t=15075

 

[tarry99]

Troy,

Are you saying the movement was on the spindle whereby the hub would be loose on the spindle as if the large Nut was loose???? If so the wobble effect of a loose spindle nut would make the brakes grab as they are rotating in a non-concentric circle.....I would change the bearings on that loose side......to hard to tell the damage that could have happened to the race or bearing......these parts are cheap , not worth a failure on the road...........The large spindle nut is pre-loaded..........meaning it should have load against the bearing when tightened.............Grease is Grease.........if moisture or water gets in , it will look milky.........the closed knuckles and joints take a special Lubricant.........its not gear lube which will leak out........but more like a chassis lube or grease. You normally want to pack those before assembly as adding grease later can be done but the fill hole is really small..............a Good book if you don't already have one that covers this process nicely is the book by Moses Ludel Jeep CJ

 

[mstar]

T

So what is the mixture in the knuckle anyway /QUOTE]

Check out "John-Deere cornhead grease" for the closed knuckle.
Works great . Mike

 

[TroyaCantrell]

Thanks everyone.

Terry, the play was in the axle shaft in and out not the spindle, but everything felt too loose in there.

Got everything apart and nothing looks damaged the king pin races look good, the bearings look good but will all get replaced.

How do you tell if the bearing is good? They seek like they have a bit of play in them but nothing worn. They are all timken if that helps.

All bearings and seals will be replaced for sure.

What should be done to the outside rounded part of the axle shaft it is a bit pitted. (Where the seal and felt meet the axle.




Troy Cantrell
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Build thread - '66 CJ6 :
http://www.jeep-cj.com/forums/showthread.php?t=15075

 

[TroyaCantrell]

On this diagram I don't seem to have parts 15 - 17 unless they are pressed into the axle housing. Should the Dana 27 have them?

Troy Cantrell
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Build thread - '66 CJ6 :
http://www.jeep-cj.com/forums/showthread.php?t=15075

 

[tarry99]

Bearings are tough to look at ..........most times we look at surface finish under a high powered glass......looking for surface pits and wear...........when in question , change them , cheap insurance...........lots of guys rebuild the outside rounded housings......groves, pits & rust will not allow the seals to seal 100%.........I have seen guys use epoxy or some of the metal epoxy's to fill groves or dents and sand them down to a smooth finish and have pretty good success for no leaks........need to take that process slowly so your only taking down the added material and not cutting the OD down.
Do a search on line.

 

[jpeck71]

So did you ever find the cause of the play in the axle shaft? My drivers side has similar play and I'm looking into it as well.

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[TroyaCantrell]

I think the movement was mostly normal, the in out movement is still there but setting the preload on the spindle nut properly did seem to reduce it some.

None of the bearings were obviously bad but all got replaced anyway.

In the manual it shows an inner axle seal which mine did not have, I don't think that would have played a role in the straight in/ out movement but thought I would mention it.


Troy Cantrell
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Build thread - '66 CJ6 :
http://www.jeep-cj.com/forums/showthread.php?t=15075

 

[jpeck71]

OK. I took the locking hub off last night to start taking a look at it and ran across your post this morning.

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[jdarg]

Where you can pull the axle shaft in and out a fraction of an inch is completely normal. People often think they can't get their snap ring on because the shaft isn't "long enough", not realizing it can be pulled out slightly to expose the snap ring groove better in those scenarios.

That play has nothing to do with the the spindle bearing condition, good or bad.