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Holes in axle casing
femster87 - 8/8/14 at 09:24 AM

Hi just wanted to know if there is a good way to seal holes in axle casing. I have just had it shot blasted and held up against the light you can see fine holes in some areas, its a mg midget wirewheel axle so not the cheapest to replace. I would like to powdercoat it. Thanks in advance


Paul Turner - 8/8/14 at 09:47 AM

If its got holes in it the axle must be severely weakened by the corrosion. Forgetting about the oil leaks I would not want to risk driving a car with such an important component in a potentially dangerous condition.

Suggest you speak to a specialist MG restorer or even the MG Owners Club. With thousands of cars still in existence they must have come across this before and may have a solution.


Charlie_Zetec - 8/8/14 at 09:48 AM

As above - for such an important part of the vehicle, I wouldn't risk it. Not like it's a body panel such as a wing where a bit of P38 will smooth it over....


blakep82 - 8/8/14 at 10:19 AM

Remember its holding the weight of the car, supporting the load from road bumps, load from cornering, and the torque from the engine vs resistance from the road through tyres during acceleration and braking, so constantly trying to be ripped apart

So its corroded enough to be so thin theres holes in it now, eh?

You might be able to get it retubed, going for new tubes which are the same I.d as the originals o.d.
Cut the old ones off leaving 75cm or so of the originals, slip the new tubes on, the ends of the originals should help align everything, same with the outer ends making sure everythings the same length, weld it up

Job for a specialist really, but its not any good the way it is!

Couple of pics of me doing mine. I didnt weld them though, had someone with a proper welder do it. The new tubes are about 10mm thick I think? Was a long time ago, and supplied by SHP who built the chassis and loads of stock cars
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[Edited on 8/8/14 by blakep82]


femster87 - 8/8/14 at 10:20 AM

The axle seems fine from inspection just the bowl at the back where the oil plug is. Seems a shame to condemn the whole axle due to holes on the back end of the diff plug bowl. I will see if i can find another one. Thanks


blakep82 - 8/8/14 at 10:23 AM

quote:
Originally posted by femster87
The axle seems fine from inspection just the bowl at the back where the oil plug is. Seems a shame to condemn the whole axle due to holes on the back end of the diff plug bowl. I will see if i can find another one. Thanks


You didnt tell us that bit! Its not structural, so someone may be able to plate over it for you. Kind of making a new one


Charlie_Zetec - 8/8/14 at 10:29 AM

quote:
Originally posted by femster87
The axle seems fine from inspection just the bowl at the back where the oil plug is. Seems a shame to condemn the whole axle due to holes on the back end of the diff plug bowl. I will see if i can find another one. Thanks


Aah right, whole different ball game then! As has been suggested, you can plate over it if it's just the pan. Land Rover axles often get damaged and you can buy replacement pans such as THIS which require the old one to be cut off and new one welded on.

You could be lucky and find this may even fit it, or better still, someone makes them specifically for your axle!


DW100 - 8/8/14 at 11:42 AM

If the holes are around the rear plate and filler then I would think braising would be the best way of fixing it.

If it is good enough for Caterham to use to join their chassis then it must be good enough for this.

[Edited on 8/8/14 by DW100]


femster87 - 8/8/14 at 12:05 PM

quote:
Originally posted by DW100
If the holes are around the rear plate and filler then I would think braising would be the best way of fixing it.

If it is good enough for Caterham to use to join their chassis then it must be good enough for this.

[Edited on 8/8/14 by DW100]


Thanks alot. Never thought about that


02GF74 - 8/8/14 at 06:32 PM

As said, this is commonky discussed on lr forums. From mrmorh weling it is troublrsome as the oil has contaminated thr metal, seem to recalk one sokution is ti weld on a large stainlrss steel bowl.