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Gearbox diff seal quality (Xantia 1.9 TD BE3/5 gearbox)

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DocBrown:
Many of you have read my earlier posts on the fun I had replacing my gearbox and clutch on my 1997 Xantia 1.9 TD SX two days before my holiday to Dorset. Anyway, the holiday was great, the car smooth and quiet with no vibrating gearstick.
Just noticed today (after my wife left for work) a small patch of clean oil on the drive. I smelt it and it's gearbox oil. Even though both seals were replaced and fitted with the correct tools and to the correct depth in the diff housing, one of the seals appears to have developed a leak. Bit annoying since they are Citroen made which weren't expensive but it's still a hassle replacing them.
The design of these seals for this gearbox seem to have been changed slightly. Where once they had a white nylon (castellated) plastic seal protector facing the outside, the new seals all seem to have a thin quite stiff dust seal/oil seal which doesn't look like the same quality as the original fitment. If this is the case I'm going to have to find a supplier of the original type of gearbox/diff seal which on my previous Pug and Citroens, all last for over 100,000 miles before major drips started.
THis brings me on to a related subject. Has anyone found that many aftermarket spares, parts etc for older cars are lower in quality or service life?
Let us know if you've come across this diff seal problem or others.

Cheers

DocBrown

DocBrown:
Hi all,

just an update on gearbox diff-seal problem.

I've had to replace the leaky seal after a few hundred miles. Turns out the silicone rubber lip which bears against the driveshaft inner was not 'elastic' enough to maintain the seal. Hopefully the new one will work.
Just goes to show that even original spec components can be faulty. Luckily I caught the leak in time so no damage was done to the gearbox.
Just means I've got to re-fit the driveshaft and refill box....and I hate the smell of EP80 gearbox oil.  :(

Doc

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