Keith Posted March 26, 2009 Share Posted March 26, 2009 Has anyone got any experience of changing oil seals on an auto box? Mine has an unhealthy thirst for transmission fluid, I suspect that the seals must have dried out when it was laid up for many years. I've been ignoring the problem and just it topping up every couple of hundred miles up until now, but I'm going to have to bite bullet and sort it out properly at some time!Keith Link to comment Share on other sites More sharing options...
Toledo Man Posted March 26, 2009 Share Posted March 26, 2009 Keith, have you tried an additive? It might just cure the problem. I used the Lucas Oil stuff (about £15 a bottle and looks like treacle!) and while it didn't cure the problem it wasn't as bad as before. It depends on how far gone the seals are. If you have to remove the auto best to do it "engine out". That's what I got Brian to do when he fitted my replacement auto on Brown.Try the simple stuff first. It'll at least buy you some time to get the job done properly. Link to comment Share on other sites More sharing options...
Keith Posted March 26, 2009 Author Share Posted March 26, 2009 I've never been keen on additives because you never know what else they might be gumming up. It could be worth a try though.Cheers,Keith Link to comment Share on other sites More sharing options...
partsaver Posted March 28, 2009 Share Posted March 28, 2009 Ahh ahh good idea that spending £15 on something that doesnt cure the problem!Make sure you get the right seal kit as the BW boxes have about a million different seal kits. Link to comment Share on other sites More sharing options...
F1xa Posted March 28, 2009 Share Posted March 28, 2009 I dont like additives either, never had much luck with them. If the 'box is otherwise OK, I'd bite the bullet and change the seals. I've done these a few times- on other cars with BW autoboxes. It's no different to any other seals once its out. But before you go this far, the most common leak I have seen on these is the cork sump gasket, easily changed in situ, may be worth a try first? Link to comment Share on other sites More sharing options...
Keith Posted March 29, 2009 Author Share Posted March 29, 2009 Thanks, I'll take a good look at that. Link to comment Share on other sites More sharing options...
Toledo Man Posted March 29, 2009 Share Posted March 29, 2009 Keith, any decent automatic transmission specialist will be able to replace the seals. Parts for the BW65 are still available. Taking out the auto box yourself will save you a lot of money. I got an estimate for about £200 to have mine done. I ended up getting a decent replacement from the Triumph Dolomite Club for Brown. Link to comment Share on other sites More sharing options...
F1xa Posted March 30, 2009 Share Posted March 30, 2009 Can't see need for specialist for this task? We're talking just the front and rear seals I assume, the ones that stop puddles on the floor? Assuming it's not the sump gasket as I suggested earlier, it's take box out, slide torque convertor out and the seal is there. Pull it out and ta in new one like any other seal, lube with ATF and refit torque convertor ensuring two tongues line up with oil pump grooves. Refit box. Rear one is similar to many manuals, remove prop, remove flange, change seal, put back together- rear can be done with box in situ. Only other one that leaks sometime is the selector shaft, again an easy change but may be hard to get at with box in, depending on car.People tend to run scared of auto boxes when in fact they are nothing that special- keep everything very clean and you'll be fine. Link to comment Share on other sites More sharing options...
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