rear axle bearing/seals/leaks.

[rosco]

Just thinking beyond the square, UTEK - what motor/trans are you running - you have upped the diff ratio - that's why I ask...... and I'm too slack to look at your shed....

If you have done the HR cross-member trick - I'd be pointing you towards a HR rear axle assembly.... there are quite a few advantages in making the change..
If you are stock, and I would suggest you stay exactly that way - you'll get some joy to this problem shortly....

frats,
Rosco

[parisian62]

As far as that seal goes, from what i gather it is an EJ one but it seems to fit perfectly snug.

in that case fit it...it looks to be the same seal my mechanic provided me when I recently rebuilt the rear axles.

check this thread out http://www.fbekholden.com/forum/viewtopic.php?t=7481

Rares has a seal oil rear listed http://www.rarespares.net.au/rarespares ... ct=7419736 and can be used for FB through to HG

American Autos Rare Spares at Prospect has the same Inner Rear Axle Seals listed for FB-HG and LC to LJ.

Hope this helps.

[skin_dog]

Again, thanks for all the help guys.
Rosco, the only thing i've changed is the diff centre to a 3.55.

The thing that really gets me with this whole thing is that everywhere you look it seems to be the same seal being sold as suitable for an EK. Rares, Repco, AboutTime, eBay, etc..
I'm really leaning towards the bearing o-ring, even though it appears to be ok. Or maybe even the bearing itself, it spins smoothly and silently but maybe oil is getting THROUGH the bearing? Or around it? Maybe it's a poofteenth too small?

One other thing, is everyone running the deflector seal? They seem to be hard to find, and i'm just wondering how important they are.

Oh and ONE more thing, if EK's didn't have a seal that means they had a sealed bearing, correct?
My bearing looks a little different to other ones i've seen whether it be in the kits sold with that same EJ seal or ones in photos of similar threads on this forum.

[Devilrod]

Could be the bearings are on there way out. I had a similar issue (EJ diff drum to drum) and replaced both wheel bearings and seals and solved the leaking problem. Maybe it's worth doing then at least you won't need to change them for a long time and could fix your problem.

[rosco]

Thanks UTEK - then I'd seriously suggest you don't compromise the integrity of your stock car - well done.

I have an awful lot of stuff on for he next few days - but rain will send me inside..... we have rain coming later today and I'll go dig out that MPC.

As mentioned, I can't remember my EK housing - but recall there were many advantages in upgrading to the EH one I have fitted.... I wasn't so sure the seal was one of those.... way far too long back for this old head now...

If you are the first to come up with this leakage problem due to the current replacement, UTEK - you are setting the pace with this thread... but my suspicions are that it is some minor glitch in parts supply where you are currently at... we'll see - as with all our old vehicles, the next hurdle awaits once this one is leaped....

frats,
Rosco

[wot179]

As far as that seal goes, from what i gather it is an EJ one but it seems to fit perfectly snug.

in that case fit it...it looks to be the same seal my mechanic provided me when I recently rebuilt the rear axles.

check this thread out http://www.fbekholden.com/forum/viewtopic.php?t=7481

Rares has a seal oil rear listed http://www.rarespares.net.au/rarespares ... ct=7419736 and can be used for FB through to HG

American Autos Rare Spares at Prospect has the same Inner Rear Axle Seals listed for FB-HG and LC to LJ.

Hope this helps.

I can tell you for a fact HR and HG use a different seal.

No wonder they list it as "SOME".

Another Rares product to avoid.

[fb cruisin]

I got the same seals when I done the rear wheel bearings in my FB, they are EJ on, not a hope in hell of fitting them to my original diff housing. I still have them sitting in my shed, 4 years later no diff leaks.
Cheers Rob

[fb cruisin]

I thought there had been some information previously posted on this problem

http://www.fbekholden.com/forum/viewtop ... 6&start=15

[rosco]

Interesting read, Rob - thanks.
UTEK - there are a couple of comments made in these service bulletins which may correct your seal issue - the vertical plate installation for one, and if it has not already be done - the drilling of a hole to prevent the seal in the bearing popping out.
I was not aware that the axle bearings used the differential lubricant. If this is the case, do NOT fit the rubber cup seal with spring - the bearing requires a supply of diff oil to lubricate it.
In this application - the seals mentioned are fitted on the outer side of the bearing - the "O" ring side.
As stated above - bearing replacement with the correct bearings may correct your problem.

I don't believe I ever serviced my EK housing rear axle bearings - and have absolutely no knowledge of the components. I had replaced the rear shoes a couple of times - but must not have found issue with any bearing leaks at those times.

I replaced my assembly with an EH one - drum to drum in the very early '80's.... the vehicle had travelled only 150,000 miles at that point.

frats,
Rosco

[Beauii60]

Hi UTEK,
Beauii60 here (Tony). I'm interested in your post given my recent rear wheel bearing dramas however I can't see the pictures you have posted.

I'm a fairly new user so is there a trick to seeing them?

Once I can see them I'll throw in my two bob's worth as well.

Cheers,
Tony

[Beauii60]

Wow, a lot of correspondence on this and, apparently, much confusion.

From my recent experience even the parts suppliers don't agree with what the correct parts are.

My sketch below shows what the wheel bearing housing of "my" EK Ute looks like (I emphasise "my" as mine is original though I don't know if it is correct for all FB-EK as OEMs made running changes to designs that may not have been coordinated with new model introductions). Also, after 50 years the asle housing may have been changed for a later model.

The "EJ+" sketch is what I can determine from my FX to HR workshop manual.

FIRST! Confirm what type of housing you have.

SECOND! Confirm your axle seal lands aren't damaged (if yes, you could try a Speedi-Sleeve from SKF but I have not had any experience with these. Else replace or repair the axle.)

Then buy the correct kit. Timken do list the 2764 kit for FB-EK and 2765 for EJ+.

I've not seen the contents of a 2764 but the bearing and retaining ring will be the same as a 2675 and, if complete, there should also be a metal cased seal that presses into the second counterbore as shown below.

I ended up getting an 2765 kit from CBC bearings (it has the single sturdy o-ring unlike the Repco one) and the metal case seals from Chris at Dinkum Autos in Moorabbin (a good bloke).

The inner seal keeps the oil in the diff housing, the CBC-supplied NTN bearing featured two seals and was grease packed.

It would be interesting to know if those who did not fit the O-rings bought the Repco kit as I found these impossible to fit. The correct o-ring fitted easily.

There should also be a rubber ring that fits into the "WTF" parts (brake shoe anchor). Not sure exactly what this does but I refitted mine. I believe they are no longer available. Ask Chris at Dinkum if you can get by without it.

Assuming your axle housing is not damaged (and the source of the leak), when fully and correctly assembled you should have fixed the.....handbrake.

Cheers,
Tony

[browny]

hey
found receipt from when i did mine
bearing part no , rW507er
speedy sleeve part no, 99128
oil seal part no ,E125.225.37

[parisian62]

Great info Tony...that's going in my little black book...

Stewart

[skin_dog]

OK, so after taking an axle with old bearing on to the local bearing place i was informed that my bearings were rooted (they seemed ok but what do i know), not only that but the guy laughed saying that the manufacturer of these bearings had been out of business for 30 odd years. So it's assumed they were the original ones. I bought the timken 2765 kit which comes with the infamous cup seal (timken 2764 is just the bearing and was only a couple dollars less). I got the kit just to compare the cup style seals to the ones i got from repco previously, and although slightly shallower were the same. You were all very correct in saying these seals are not suited to my axles and that the seat on the axle where it sits would quickly chew out the seal. That being said they did seem to sit fine in the axle housing.
The new bearings are, as someone mentioned already, open at the back and rely on diff oil to lube them so i left out the cup seal.
Then it came to trying to get the axle/bearing assembly back into the housing.......Not happening cos of those 2 crappy little o-rings.
So, with great reluctance i removed them, greased it up with the rubber grease and pushed them in.
Driving it daily since then with no signs of leakage yet.

Thanks again everyone for all the adviceand tips.

[parisian62]

Good stuff utek. Thanks for the update.

Stewart