Vehicle & Technical > Discovery

leak rear diff

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hobbit:
As a temporary repair there is a putty that comes in two components. I think it was a petro patch type product, but works on sealing against oil as well as petrol or diesel

I cleaned my rangy rear diff off because of a leak, found pin holes in the backplate, drained the oil out, then used this putty.

It held off the leaks long enough for me to get round to replacing the pan. If you can weld or have a mate that can, as has been said above not to expensive, just a case of stripping down to weld the new one on, although when done I also applied some of this putty round the inside of the new pan around where welded just to seal any small pin holes

karloss:
I used chemical metal, been on there over a year now and no leaks at all. Just make sure you clean it up well before gooing.

Matt_H:
cleaned up the hole <sic> lot then sued clutch and brake cleaner to get it all nice and clean.  By this stage the oil had stopped leaking (guess the diff had cooled down and created a partial vacuum as I removed and then put back in the filler plug.  Put a nice thick coat of chemical metal across the entire area and managed to get it nice and smooth.  Left to dry whilst I did other things, it's now wearing a nice coat of black hammerite, as is the rest of the axle.

We'll see how that copes and in the mean time I can look for an axle on ebay or at sodbury :-)

Wanderer:
http://members.mud-club.com/profiles/Wanderer/gallery/Diff%20damage
Unfortunately it wouldn't have worked on mine. See pics.

Ed

Range Rover Blues:
I'd just weld a plate over that, you havn't got too much rust whicj is often the cause of leaks.  Ours kept leaking because somebody had left 8 of the rollers from a previous exploding diff inside the casing, everytime it went on the motorway it punched a neat round hole in the axle.  I just welded them up.  Be careful, if you're not a good welder it will be porous and leak.

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