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Axle leak?

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Axle leak?
#1
Ian Williams Avatar
Ian Williams Ian W
Chipping Longjourney, Toofarupnorth, UK   GBR
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Took a rear drum off for the first time today and immediately noticed THAT smell of diff oil... As I continued I expected to find the shoes and inside of drum covered in oil, but no..
There is just a slight trace of oil on both mating faces where the drum attaches to the hub. (You can see from the photos)

So does this mean the gasket needs sealing/ changing as this is the early stages of the leak?

The hub seal is dry incidently, so no leaks there.


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Re: Axle leak?
#2
Muzz Avatar
Muzz Silver Member Murray Cowley
Tavistock, Devon, UK   GBR
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1954 MG Magnette ZA
1955 MG Magnette ZA
1995 AC Cobra "The Beast"
Maybe the PO put some grease on the mating surfaces to prevent sticking?
Shot in the dark but possible?


55 ZA,
1800 3 bearing engine, Peter Burgess modified head.
5 speed gearbox
4.3 rear axle
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Rosso Brunello Mettallic Red

54 ZA Tintop
All put together now.
Has a 1622cc engine, 5 speed, 3.4 rear axle.
On wires.
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1995 Gardner Douglas Cobra 427 Replica
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Re: Axle leak?
#3
magnette486 Trevor Jones
Somerset, UK   GBR
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1958 MG Magnette ZB Varitone
Ian

There is a 4mm drain hole between the two lower backplate fixing bolts make sure this is clear, MGA and Magnettes etc have the same axle and these holes are often over looked. I always enlarge these to 6mm.

The oil can leak past the paper seal and and through the retaining screws
Trevor

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Re: Axle leak?
#4
geezer Avatar
geezer Silver Member charles durning
Magee, MS, USA   USA
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1967 Morris Minor 1000 Saloon (2-door) "Marvin"
1974 MG MGB GT "Foghorn Leghorn"
That is an easy fix. Just pull the axle out and replace the gasket and O-ring. Since the hub seal is dry, leave it alone.


CAUTION!!

Information in my journal may not be suitable for those who are sensitive. View at your own risk.

Know the rules well so you can break them effectively. Dalai Lama

That is why I always say, who cares how the factory did it, they did so many things so wrong, they were never the example to follow. Hap Waldrop

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Re: Axle leak?
#5
Ian Williams Avatar
Ian Williams Ian W
Chipping Longjourney, Toofarupnorth, UK   GBR
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Thanks Trevor (and others)

I will try some loctite gasket sealant on it first. What type is best?

Am I going to need a slide hammer to remove the half shaft?

Ian

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Re: Axle leak?
#6
enigmas Avatar
enigmas Vince Stok
Melbourne, Victoria, Australia   AUS
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Ian none of it is a big deal! Cut some new gaskets out of gasket paper or a cereal box, fit a new large O ring to the bearing carrier if your car uses one (IIRC there's also a lip seal at the inner end of the hub that will need replacing by now) and use a good quality non hardening gasket sealant on the axle and joint faces. The axle slides out directly as the axle hub carries the bearing and the load.

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Re: Axle leak?
#7
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B-racer Jeff Schlemmer
Shakopee, MN, USA   USA
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1950 Willys Jeep Pickup "Ratrod"
1964 Land Rover Series IIA
1971 MG MGB
That cover is likely warped, and the mating face it attaches to is also probably warped. When you pull the axle, run a file across the gasket surface to knock down the high spots, and use a good glue like Permatex #2, not silicon! It took me a couple tries to get mine to stop leaking, so make everything is perfect before sealing it up!


jeff@advanceddistributors.com

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  Ian Williams thanked B-racer for this post
Re: Axle leak?
#8
Darvie43 David Hill
Narellan, NSW, Australia   AUS
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As i keep saying on various forums, remove the breather from the main axle body, give it a good wash and refit, at worst you have nothing to lose.

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Re: Axle leak?
#9
enigmas Avatar
enigmas Vince Stok
Melbourne, Victoria, Australia   AUS
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Good point.

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Re: Axle leak?
#10
Ian Williams Avatar
Ian Williams Ian W
Chipping Longjourney, Toofarupnorth, UK   GBR
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Thanks Dave
Point noted. I know this can build pressure if not done.

When I painted the axle I was aware of these breathers, seeking them out and making sure I cleaned them out using a drill bit. End holes were completely blocked and top one not brilliant.

My thoughts are that it's this lack of care over time by PO that caused the issues here.

Thanks all for chipping in here..

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Re: Axle leak?
#11
Clacksman Avatar
Clacksman Andy Dear (RIP)
Central Scotland, UK   GBR
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1957 MG Magnette ZB "Maggie - Aren't They All?"
Ian,
You have a PM.

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Re: Axle leak?
#12
Clacksman Avatar
Clacksman Andy Dear (RIP)
Central Scotland, UK   GBR
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1957 MG Magnette ZB "Maggie - Aren't They All?"
Ian,
You have a PM.

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Re: Axle leak?
#13
Ian Williams Avatar
Ian Williams Ian W
Chipping Longjourney, Toofarupnorth, UK   GBR
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Well... I undid the flange screws and the half shaft popped out (with some help) was all a bit scary, but the first time I'd ever meddled with a rear axle...

Was expecting hundreds of gallons of oil, but no ! Used gasket sealant and will monitor the repair.

Yours apprehensively.........

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Re: Axle leak?
#14
Ian Williams Avatar
Ian Williams Ian W
Chipping Longjourney, Toofarupnorth, UK   GBR
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.



Edited 1 time(s). Last edit at 2017-01-18 01:13 AM by Ian Williams.

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Re: Axle leak?
#15
Ian Williams Avatar
Ian Williams Ian W
Chipping Longjourney, Toofarupnorth, UK   GBR
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Vince

I have stopped panicking and sealed the flange. We will see how this goes.

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