gilesy Posted January 18, 2016 Share Posted January 18, 2016 Hi, I'm new to this Defender stuff so please be patient, I've recently bought a 1986 110 with tipper body, it has a more recent 200tdi engine and LT77 gearbox, I've discovered an oil leak from the transfer box and considered changing it. I've come across a LT230 transfer box from a low milage 1998 Disco, does anyone know if this would be a straight forward direct swap? i know this would change the gearing but for the type of use i think this would be an advantage. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted January 18, 2016 Share Posted January 18, 2016 I would think it's worth exploring other avenues before you consider swapping it - Where is it leaking from? There are a few common leaks that are really rather straightforward and inexpensive to fix with it in situ. Quote Link to comment Share on other sites More sharing options...
gilesy Posted January 18, 2016 Author Share Posted January 18, 2016 yeah thats what i was hoping, i took it to my local 4X4 bloke and he told me it would be cheaper and easier to replace rather than try repairing it, time for a 2nd opinion i think Quote Link to comment Share on other sites More sharing options...
gilesy Posted January 18, 2016 Author Share Posted January 18, 2016 I've been told its most likely the leak is coming from shaft seal ( round bit in middle of picture) see attachment. sorry for my ignorance i have a lot to learn about my landy Quote Link to comment Share on other sites More sharing options...
Anderzander Posted January 18, 2016 Share Posted January 18, 2016 So where is it leaking from ? Common ones being either output shaft - so into the hand brake drum or at the back of the front prop. Also the intermediate shaft o ring - at the front face of the box next to where it mates to the gearbox. There are guides to fixing all of thos in this sites tech archives. Quote Link to comment Share on other sites More sharing options...
gilesy Posted January 18, 2016 Author Share Posted January 18, 2016 yeah intermediate shaft o ring i think Quote Link to comment Share on other sites More sharing options...
Boydie Posted January 18, 2016 Share Posted January 18, 2016 Easy fix for this is clean it up with degreaser so that it's totally clean of any oil and then cover the end of the shaft and surrounding box with red high temperature silicon. The usual cause is that the shaft wears the alloy case into a slight oval allowing oil to leak out past the O ring, long term wise you are up for a new/replacement box, either that or you recondition the one you have by having the current bore machined out, a steel bush pressed into the box and then machined out for the shaft and "O" ring, Ashcrofts can do this for you if they are local to where you are. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted January 19, 2016 Share Posted January 19, 2016 Oops - when I started my post I didn't notice you'd put a picture up ... There is a 'bodge' in the tech archive for marking the nut and then tapping the shaft through to fit a new 'o' ring. Worth a look as they do flatten - when I took mine out it looked square. Quote Link to comment Share on other sites More sharing options...
ejparrott Posted January 19, 2016 Share Posted January 19, 2016 If it's from a disco it'll be a 1.2 transfer box, and you'll likely struggle with it, especially with a loaded tipper. Quote Link to comment Share on other sites More sharing options...
gilesy Posted January 23, 2016 Author Share Posted January 23, 2016 thanks guys, going to try bodging it with silicone for now as I've spent enough money for one month! Quote Link to comment Share on other sites More sharing options...
gilesy Posted February 13, 2016 Author Share Posted February 13, 2016 okay so after getting a couple of (professionals) to take a look I've been advised the best option would be to buy a recon or a good working selvaged transfer box, recon is well out of my price range and selvage ones of ebay seem to be a real gamble as no guarantee they are any better than the one I'm taking off, any ideas where i could get a decent LT230 for a 200tdi? not too worried about ratio's just want something that works! Quote Link to comment Share on other sites More sharing options...
Anderzander Posted February 13, 2016 Share Posted February 13, 2016 Have you looked at the intermediate shaft o ring bodge in the tech archive ? Worth considering before you go for a replacement box. Quote Link to comment Share on other sites More sharing options...
gilesy Posted February 13, 2016 Author Share Posted February 13, 2016 yes mate, it would seem the box not only has a bad leak but the diff lock isn't engaging and it wines, probably due to the fact the last owner was driving it with no oil in Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted February 13, 2016 Share Posted February 13, 2016 All LT230s are the same other than the gear ratio in high range. If you can use spanners and bearing pullers, an LT230 is pretty basic to rebuild and new bearings, seals and Gaskets can be had for around the same price as a box from a breakers. Would probably take a weekend with a mate helping to remove and refit the box afterwards. Quote Link to comment Share on other sites More sharing options...
gilesy Posted February 13, 2016 Author Share Posted February 13, 2016 ok that sounds like a good plan, I've been lead to believe thats a really difficult job but probably because the garage i took it to couldn't be bothered, Quote Link to comment Share on other sites More sharing options...
ejparrott Posted February 13, 2016 Share Posted February 13, 2016 £140 I think for a rebuild kit from Ashcrofts.... Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted February 13, 2016 Share Posted February 13, 2016 There fairly simple items, me and the brother in law once bodged one good one out of 2 broken ones In the time it took to eat a bag of chips.... And that was with the guts out of it. Quote Link to comment Share on other sites More sharing options...
Anderzander Posted February 13, 2016 Share Posted February 13, 2016 I've always been put off by having to preload the bearings and thinking I'd need some special pullers ? Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted February 13, 2016 Share Posted February 13, 2016 I don't think you need much in the way of special tools. Might be worth looking up the WSM.. The preloaded shouldn't need adjusting because bearings are so precisely made, the shims are there more for the machining tolerances on the casting and the gears. Quote Link to comment Share on other sites More sharing options...
lo-fi Posted February 14, 2016 Share Posted February 14, 2016 I've just rebuilt two LT230's. Dead easy to work on, kits available from Ashcroft with excellent quality everything. A set of bearings pullers needed if you want to change them, but otherwise just a few spanners, torque wrench and hand tools to do a seal and gasket refresh. Measuring and setting bearing pre-load as per the manual requires a dial gauge, spring balance and fine torque wrench, but I agree with Vulcan that the shims are there to adjust for variations in casings, rather than the precision made bearings, so I'd be surprised if you found you needed different shims. Have a nose through the manual to get a better idea - you can find on Ashcroft's site in the section with the rebuild kits. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.