dickie b
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| posted on 17/9/08 at 09:06 PM |
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english axle hub bearing oil seal replacement?
Evening all
Looking for words of advice here!
I have an empty Fury modified 5-link axle casing (salisbury) and have since bought a complete axle & diff straight off a mk2 escort to exchange
internals over.
The donor axle is leaking oil from one of the hub's combined bearing and oil seal and these interference-fit items I am looking to replace
(along with the main diff seal).
Haynes manual says that changing the bearing/seals will need specialist tooling, press etc..
Is this possibly a DIY job or am I really best off simply handing the two half-shafts over to my local transmission shop to save me a shedload of
grief, pain and swearing ?
I have had a good read of the previous posts on here and sounds like rather a difficult one to get the job done right !
any advice gratefully received.
cheers
Richard
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UncleFista
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| posted on 17/9/08 at 09:11 PM |
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I managed it by angle grinding the old bearing off, then making a press from a decent sized bottle jack, some heavy-duty steel and a welder....
This was after my local garage gave up !
Removal is easy, it's pressing the new one over the shaft that's the bugger, if your time is worth anything (mine isn't) slip
someone a tenner to do it 
Tony Bond / UncleFista
Love is like a snowmobile, speeding across the frozen tundra.
Which suddenly flips, pinning you underneath.
At night the ice-weasels come...
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dickie b
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| posted on 17/9/08 at 09:14 PM |
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cheers - think I know the answer to be honest : reach for the yellow pages and find someone who knows what they are doing make a proper job of it.
If its me will probably end in tears. Or casualty..
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dickie b
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| posted on 17/9/08 at 09:14 PM |
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cheers - think I know the answer to be honest : reach for the yellow pages and find someone who knows what they are doing make a proper job of it.
If its me will probably end in tears. Or casualty..
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02GF74
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| posted on 18/9/08 at 07:14 AM |
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it does seem daunting but once you have commited to it, it is a piece of cake, well almost.
I bought a pair of bearings of ebay - £ 20 and these have a groove in the outer race with an o-ring for sealing.
the removal of the collar and bearing is the most difficult and time consuming part.
I used a grinder and chisel to remove the collar. Again used grinder for the bearing and then hammer to crack it.
To fit you either need a press/puller or a substantial peice of tubing, I used the latter. Ensure the tubing will press on the inner race of the
bearing - apparently scoffold tubing is ideal.
Put the half shaft in a bucket of icy water and heat a can of engine oil to about 100 C - this increases the clearnace between the 2. Then slip on
the bearing, drop the tube over and twat it with a hammer until seated. (at this point you realise you forgot to put the flange on - I almost
did!)
The inner race has a curved lip that goes outwards i.e. it is not symmetrical.
I put the collar on a BBQ and reckon that got to about 300 C, dropped it onto the halfshaft and it need very little hammering to seat. Then
immediately cooled the collar with water to avoid heat damaging the seal in the bearing.
The trickiest part is to get the sealing o-ring past the back plate and into the axle -this takes a lot of patience but once done, no more leaks. I
used no sealnet whatsoever.
The collar had been welded onto the shafts so that made it a bit harder to remove; when fitted I blobbed on some weld too.
It took me less than 2 hours, not including the fitting, to do both, mainly for the grinding away part.
[Edited on 18/9/08 by 02GF74]
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britishtrident
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| posted on 18/9/08 at 07:34 AM |
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One thing to be clear about do you have a salsbury or english axle ?
The job is the same on both but the parts are not interchangeable between the two.
Easy job
Tradditional way of getting the old bearing off was to break up the outer race by crushing in a large vice then grind a nick on the inner race to get
through the case hardening then split it with a chisel but using angle grinder will do the job nicely.
Putting the bearing on is much as 02GF74 says but you can heat the bearing in oil to higher temperture say 140c
Just make sure you get the bearing the correct way round and put the retainer plate on before you heat the bearing and drop it on.
A short length of scaffoliding tube is handy to use as drift to ram the bearing fully home.
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02GF74
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| posted on 18/9/08 at 09:12 AM |
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quote:
Originally posted by britishtrident
Tradditional way of getting the old bearing off was to break up the outer race by crushing in a large vice
now you tell me.... 
'twas time consuming and tricky grinding the outer since it wanted to spin too....
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britishtrident
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| posted on 18/9/08 at 02:06 PM |
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quote:
Originally posted by 02GF74
quote:
Originally posted by britishtrident
Tradditional way of getting the old bearing off was to break up the outer race by crushing in a large vice
now you tell me....
'twas time consuming and tricky grinding the outer since it wanted to spin too....
Trouble is the vice has got to be really big & heavy duty -- nearly as big as Max Mosley's
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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dickie b
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| posted on 18/9/08 at 06:51 PM |
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Thanks for all the help chaps - being a bit of a wuss I will just farm it out to a specialist - not quite lo-cost but probably lo-risk !
cheers Richard
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David Jenkins
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| posted on 18/9/08 at 08:10 PM |
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The method I was told for removing the old bearing was to first mark the outer race with a grinder - just a notch - on opposite sides. Once
that's done, take a pair of hammers and hit opposite sides of the race simultaneously.
What I hadn't been told was that the pieces of the race fly off like shrapnel! Fortunately I'd worn eye protection, but later on the
'expert' said "Oh, didn't I tell you to wrap a cloth around before hitting it?" Doh!
The same trick subsequently removes the inner race, of course...
I got a local garage to put the new bearing and collar on - cost me a couple of quid into their tea fund.
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RoadkillUK
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| posted on 19/9/08 at 12:23 AM |
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Like Unclefista says, we used a grinder to get to old one off and made up a press to get the new one on, it was suprisingly easy.
Here is a pic of the press.
Come on chaps, it IS after all Locostbuilders after all
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
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Daddylonglegs
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| posted on 19/9/08 at 07:32 AM |
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quote:
Originally posted by RoadkillUK
Like Unclefista says, we used a grinder to get to old one off and made up a press to get the new one on, it was suprisingly easy.
Here is a pic of the press.
Come on chaps, it IS after all Locostbuilders after all
Bang on! Love the ethics and the press 
Still not sure whether I'll be capable of doing it without a c**k up though ......
JB
It looks like the Midget is winning at the moment......
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dickie b
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| posted on 19/9/08 at 12:16 PM |
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British trident : As far as I can see its a salisbury unit. Definitely not a Timken unit.
I thought that 'english' just referred to the general axle type (Atlas being next size up), but will pick the new parts carefully.
Almost tempted to have go myself now.
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