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Technical 1.2 gearbox end cover become porous

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Technical 1.2 gearbox end cover become porous

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PandaClimbing

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Hi
I've been lurking for sometime, enjoying my 04 1.2 4x4, now on 106k hard on & off road miles including forestry tracks every week. Reliability has been almost faultless but I'm now loosing a small amount of gearbox oil I think through the end cover which has become porous (has anyone else experienced this?). I'd like to replace the cover with a new part & renew the gasket at the same time but I haven't been able to find the part numbers. Anyone point be in the right direction? My nearest Fiat dealership is over an hour away.
Many thanks.
 

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Excellent, many thanks. Quite expensive for a piece of tin but probably not worth second handing.
 
If anyone else suffers this problem a replacement cover can be supplied by the Punto Shop, think it was about £45 for a brand new replacement, takes 20mins to fit.
 
As an aside, porous castings can now be recovered. They were common on old cars and bikes usually meaning the parts were scrap. Google "porous casing repair".

Not a new problem https://pdfs.semanticscholar.org/ed2b/54b845a4b73df582a99de44e5cfeb8077d4c.pdf

Rolls Royce dipped their new Merlin engine castings in hot linseed oil. But as oils are not affected by oils, they will work with contaminated porous metal. Linseed oil quickly polymerises (turns to varnish).
 
PandaClimbing said:
If anyone else suffers this problem a replacement cover can be supplied by the Punto Shop, think it was about £45 for a brand new replacement, takes 20mins to fit.
Click to expand...


Not had any problem with a 100 000 miles and 200 000 miles cars or heard of any others. A few sumps have failed though. Looks like you were just unlucky.
 
Thanks for that, I did try a much rougher "field" version by applying left over flexacryl to the outside of the cover. That lasted ten months / 7k miles (hence the gap in my posts). To be fair I'm not sure we're using porous in exactly the same way, the end cap had essentially developed pinholes through corrosion rather than manufacturing defect. I remain massively impressed with the little car and its ability to soak up forestry punishment for which is was never intended, it's comfortably more reliable than my Ranger pick-up and almost as good off road, better on wet grass & that's road tyres vs BFG ATs.
 
PandaClimbing said:
Thanks for that, I did try a much rougher "field" version by applying left over flexacryl to the outside of the cover. That lasted ten months / 7k miles (hence the gap in my posts). To be fair I'm not sure we're using porous in exactly the same way, the end cap had essentially developed pinholes through corrosion rather than manufacturing defect. I remain massively impressed with the little car and its ability to soak up forestry punishment for which is was never intended, it's comfortably more reliable than my Ranger pick-up and almost as good off road, better on wet grass & that's road tyres vs BFG ATs.
Click to expand...

I didn't bother to check if it's steel or alloy. Presumably it's steel like the sump pans (which also rusts).

Why not take the cover off and either have it braze or even solder repaired? A good coat of paint will keep it safe for the life of the car.
 
PandaClimbing said:
If anyone else suffers this problem a replacement cover can be supplied by the Punto Shop, think it was about £45 for a brand new replacement, takes 20mins to fit.
Click to expand...

Was only about £30 iirc from my local main dealer when I had to change it on my mk3 4x4.

Seems to becoming a communist problem, but a quick and easy fix luckily :)
 
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