IanT90 Posted June 9, 2015 Share Posted June 9, 2015 When I was struggling to remove the needle roller bearing from the stub axle I demolished the oil seal in the process. Did make it easier to get the bearing out though. Now my predicament is I am unsure which way around the replacement goes. My workshop manual doesn't show the right orientation. I do know there is a right and wrong way. Does anyone have any idea ? Some advice would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
pete3000 Posted June 9, 2015 Share Posted June 9, 2015 depends on the seal, the directional type seal the sharp lip edge should go towards the oil or grease, The more confusing rtc3511 (fits many vehicles) double lip seal, if you need to tap it in you'll be using the flat face, use another rtc3511 (or the old one) to avoid smashing the smaller diameter piece through the seal. edit: if we are talking about the stub axle inner and outer seals that is... Quote Link to comment Share on other sites More sharing options...
Buzza Posted June 9, 2015 Share Posted June 9, 2015 The cavity side of the seal, where you can see the spring ring, leads in, ie, faces the threaded end of the stub axle. Steve Quote Link to comment Share on other sites More sharing options...
IanT90 Posted June 9, 2015 Author Share Posted June 9, 2015 Cheers for that makes sence its kinda what I thought but nice to have some confirmation. Thanks for the feedback appreciated. Quote Link to comment Share on other sites More sharing options...
pete3000 Posted June 10, 2015 Share Posted June 10, 2015 The cavity side of the seal, where you can see the spring ring, leads in, ie, faces the threaded end of the stub axle. Steve The RTC3511 may be slightly different, the spring sits on the outside edge, of the part. note from other google pics the slight round taper on the side that goes in first, then the larger plug end. http://s577.photobucket.com/user/rover_driver/media/RoverParts/Drivetrain/RTC3511.jpg.html Also note, use a scrap rtc3511 seal to tap the smaller diameter 1mm or so below the face of the flange, or it won't last long. I used these on my pre 300tdi axles in both inner and outer bearings on the stub axle/hub recessed as per another place http://landroverforums.com/forum/discovery-i-39/hub-seal-leaking-again-grr-35029/page3/ Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted June 10, 2015 Share Posted June 10, 2015 You chaps are talking about different seals, OP's question relates to the stub axle seal not the hub seal. Stub axle seal goes inside the stub axle and is supposed to stop axle oil migrating along to the hub. This is the one that some people remove to allow the oil to do just this with a view to better lubrication. Quote Link to comment Share on other sites More sharing options...
pete3000 Posted June 10, 2015 Share Posted June 10, 2015 Don't think i've ever seen one of those James. Are they on later 300tdi or 90 axles?. On my rear disc brake conversion I deleted the outer seal on the stub as well, to let the oily goodness run through the whole axle and stubs Quote Link to comment Share on other sites More sharing options...
Ash.Witty Posted June 10, 2015 Share Posted June 10, 2015 Think its 300Tdi onwards front axles, part number 23. I remember the pressing the flatter face in first, and the recessed side is facing the needle rollers. Quote Link to comment Share on other sites More sharing options...
Buzza Posted June 10, 2015 Share Posted June 10, 2015 That's the correct seal, if you look closely at cross section drawing you can see the open side of the seal goes in first, so flat face towards needle bearing. Steve Quote Link to comment Share on other sites More sharing options...
daveturnbull Posted November 13, 2017 Share Posted November 13, 2017 On 09/06/2015 at 10:03 PM, IanT90 said: Now my predicament is I am unsure which way around the replacement goes. My workshop manual doesn't show the right orientation. I do know there is a right and wrong way. Did you figure this out in the end? I've got the same seal to do on the rear and can't remember which way the old one before I took it out. Quote Link to comment Share on other sites More sharing options...
miketomcat Posted November 14, 2017 Share Posted November 14, 2017 Generally the cupped side of the seal (the side you can see the spring). Goes towards the liquid your trying to keep in and the flat side out. Mike Quote Link to comment Share on other sites More sharing options...
daveturnbull Posted November 14, 2017 Share Posted November 14, 2017 Thanks Mike, top tip there. I'd never really thought about it before, but that does seem to be the case. I did find a video on youtube that showed the seal this way round, but just because somebody else has done it doesn't mean it's right! Quote Link to comment Share on other sites More sharing options...
Snagger Posted November 22, 2017 Share Posted November 22, 2017 On 14/11/2017 at 12:52 PM, daveturnbull said: Thanks Mike, top tip there. I'd never really thought about it before, but that does seem to be the case. I did find a video on youtube that showed the seal this way round, but just because somebody else has done it doesn't mean it's right! Seals always work that way - the idea is that by having the fluid inside the hollow side of the seal, and increase in pressure will force the lip tighter onto the shaft. Having the seal the other way allows easy fluid migration as it will push the lip off the shaft. It's the same principle as a mitral valve (like in your heart). Quote Link to comment Share on other sites More sharing options...
neil110 Posted November 26, 2017 Share Posted November 26, 2017 Honestly it is a far better idea to pull the stub axle seal out and chuck it in a bin. Let the oil from the diff migrate along the half shaft and lubricate the wheel bearings. Just like Land Rovers of old did, right up to about 1994 Quote Link to comment Share on other sites More sharing options...
Snagger Posted November 28, 2017 Share Posted November 28, 2017 On 26/11/2017 at 8:26 PM, neil110 said: Honestly it is a far better idea to pull the stub axle seal out and chuck it in a bin. Let the oil from the diff migrate along the half shaft and lubricate the wheel bearings. Just like Land Rovers of old did, right up to about 1994 Agreed. I did that on my wife's 2009 Defender. Quote Link to comment Share on other sites More sharing options...
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