Gazzar Posted June 4, 2020 Share Posted June 4, 2020 I think that the leather used nowadays is different to when they used leather to seal everything, and the tanneries were heated up for it. I'd switch to a decent synthetic seal. Quote Link to comment Share on other sites More sharing options...
Snagger Posted June 4, 2020 Share Posted June 4, 2020 That is a bad leak from the hub seal. As I said, I thought you’d tamed that. If you are sure you don’t have a comparability issue between the era of stub axle and seal land and the seal that you’re using, then it could be a manufacturing flaw with the seal lands. They’re aftermarket, being stainless, so while stainless would be fantastic for avoiding the pitting that happens later and hopefully good for reducing the groove cutting if the seal, being harder, there is an increased chance of them being an incorrect size. I would check a new, uninstalled seal over them to see how tight they are - they shouldn’t just slip on. The leather and rubber seals contact roughly the same spot on the seal land, so I don’t quite follow the comment above about metal contact. Both types should sit firmly in the hub, with either a rubber or leather lip running on the land. It’s worth checking the measurements of the hub distance from the brake back plate and the seal from the back edge of the hub so that you can check that the seal lip is fully engaged on the land. If pressed too far in, the lip may be running on the edge of the land, which would cause trouble. Clutching at straws, but you definitely fit the right way around, didn’t you? Hollow side toward the bearing, flat side toward the diff... As for the exterior leaks, make sure the groove for the o- ring Is clean and undamaged, and check the cone for roundness and scoring. Fit a new o-ring and all should be good, but I’d not be surprised if Britpart sell cheap o-rings with too thin a section that doesn’t seal correctly. Quote Link to comment Share on other sites More sharing options...
jessejazza Posted June 13, 2020 Share Posted June 13, 2020 On 6/4/2020 at 3:39 PM, Snagger said: That is a bad leak from the hub seal. As I said, I thought you’d tamed that. If you are sure you don’t have a comparability issue between the era of stub axle and seal land and the seal that you’re using, then it could be a manufacturing flaw with the seal lands. They’re aftermarket, being stainless, so while stainless would be fantastic for avoiding the pitting that happens later and hopefully good for reducing the groove cutting if the seal, being harder, there is an increased chance of them being an incorrect size. I would check a new, uninstalled seal over them to see how tight they are - they shouldn’t just slip on. The leather and rubber seals contact roughly the same spot on the seal land, so I don’t quite follow the comment above about metal contact. Both types should sit firmly in the hub, with either a rubber or leather lip running on the land. It’s worth checking the measurements of the hub distance from the brake back plate and the seal from the back edge of the hub so that you can check that the seal lip is fully engaged on the land. If pressed too far in, the lip may be running on the edge of the land, which would cause trouble. Clutching at straws, but you definitely fit the right way around, didn’t you? Hollow side toward the bearing, flat side toward the diff... As for the exterior leaks, make sure the groove for the o- ring Is clean and undamaged, and check the cone for roundness and scoring. Fit a new o-ring and all should be good, but I’d not be surprised if Britpart sell cheap o-rings with too thin a section that doesn’t seal correctly. Replaced both sides hub seals this weekend. The o/s had a synthetic one but I don't think I tapped it in far enough. The n/s had the metal and leather - it would seem it hadn't sealed. What I don't follow is the metal and leather seal is thicker than the synthetic one so maybe does not seal against the land... but I will only fit the synthetic ones now. The front oil leak may have come from the thin paper gasket which I have replaced using hylomar as well. Seems to have sealed this time so many thanks for your help and advice. Quote Link to comment Share on other sites More sharing options...
Snagger Posted June 14, 2020 Share Posted June 14, 2020 Glad it’s done! Quote Link to comment Share on other sites More sharing options...
Snagger Posted June 14, 2020 Share Posted June 14, 2020 Out of curiosity, the paper gaskets for the drive flanges - were they the thin, smooth paper or thick and a little rough, like thin card board? The thick type tends to compress after a short while and needs the bolts nipping up again, but do allow better for damaged or warped faces. The thin gaskets don’t shrink like that, but do need smooth faces to seal against. Quote Link to comment Share on other sites More sharing options...
jessejazza Posted June 14, 2020 Share Posted June 14, 2020 17 hours ago, Snagger said: Out of curiosity, the paper gaskets for the drive flanges - were they the thin, smooth paper or thick and a little rough, like thin card board? The thick type tends to compress after a short while and needs the bolts nipping up again, but do allow better for damaged or warped faces. The thin gaskets don’t shrink like that, but do need smooth faces to seal against. Thin smooth paper type. With paper gaskets I always have used a smear of grease on any motor. It would seem that some hylomar to help seal against any imperfections are worthwhile. New to LR so still finding out the necessary quirks that one needs to acquire. Many thanks. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted June 14, 2020 Share Posted June 14, 2020 19 hours ago, Snagger said: Glad it’s done! I’m waiting until its back on and running ! 😊 Quote Link to comment Share on other sites More sharing options...
jessejazza Posted June 16, 2020 Share Posted June 16, 2020 On 6/14/2020 at 11:56 PM, Anderzander said: I’m waiting until its back on and running ! 😊 No leaks and seems to be ok. Honest!😀😀 Now got to turn my attention to other trouble! 2 Quote Link to comment Share on other sites More sharing options...
Anderzander Posted June 16, 2020 Share Posted June 16, 2020 Great news ! Quote Link to comment Share on other sites More sharing options...
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