Jocklandjohn Posted October 8, 2016 Share Posted October 8, 2016 I've had a slow leak form the gearbox for ages, very small amounts of fluid, and seeming to come from very high up on the box. I asked Ashcrofts who supplied it and they suggested that the O ring on the horizontal shaft at top is the likely culprit. I have an old box in the garage so took the top off to see how its put together and have found the O ring (pic 2) . However I'm not entirely sure how to remove the shaft. There's a large allen-head fastener on the top of the top-plate (pic 3), and concealed inside the box itself on the underside of the top-plate there's a push-through pin of some sort (pic 1). How does that pin come out - is it a push-through job? Anyone tell me how to proceed - is it remove the fasteners at both ends to remove the shaft or is there some other method? Also - are there any bear traps waiting to swallow me - or is it as straightforward as it looks (once the shaft is removed)? Quote Link to comment Share on other sites More sharing options...
western Posted October 8, 2016 Share Posted October 8, 2016 just undo & remove that allen grub screw & the gear lever cup will slide off. the cup part is item 13 & the shaft it fits on is item 6, 'o' ring seal is item 12 in http://new.lrcat.com/#!/1228/21477/21950/1657 Quote Link to comment Share on other sites More sharing options...
Souster Posted October 8, 2016 Share Posted October 8, 2016 Make sure it's a good fitting Allen key/socket into that grub screw. They are really tight, and thread locked into place. The slightest bit of dirt and incorrect fit chews them up. HTH Quote Link to comment Share on other sites More sharing options...
Jocklandjohn Posted October 9, 2016 Author Share Posted October 9, 2016 Thanks very much for the replies and link Ralph & Souster. Does that imply that the removal of the gear lever cup allows sufficient free movement to withdraw the shaft one way or the other to fit the O ring? It's hard to judge whether it does or not when comparing the two sides as the- LEVER-SELECTOR SELECTOR MECHANISM to the lower box (item 7 on lrcat link you provided) has only a relatively small amount of movement to and fro. The O ring is actually nearer the opposite end from the gear lever cup. I'm sure it will make sense but I can't visualise it! Quote Link to comment Share on other sites More sharing options...
western Posted October 9, 2016 Share Posted October 9, 2016 IIRC there is a core plug on the rear face of the casting, with it removed the shaft might be able to be extracted from the casing. http://new.lrcat.com/#!/1228/21477/21950/1650 Quote Link to comment Share on other sites More sharing options...
Jocklandjohn Posted October 9, 2016 Author Share Posted October 9, 2016 3 hours ago, western said: IIRC there is a core plug on the rear face of the casting, with it removed the shaft might be able to be extracted from the casing. http://new.lrcat.com/#!/1228/21477/21950/1650 Looking at it again I think you're right Ralph - strip the shaft and it should slide out through the core-plugged hole. Must have a look in situ and see how much space there is. Cheers. Quote Link to comment Share on other sites More sharing options...
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