western Posted September 26, 2020 Author Share Posted September 26, 2020 it can be tested on the vehicle too as you will hear it click as the power applied shifts the plunger across. Quote Link to comment Share on other sites More sharing options...
reb78 Posted September 26, 2020 Share Posted September 26, 2020 30 minutes ago, western said: it can be tested on the vehicle too as you will hear it click as the power applied shifts the plunger across. True, but its good to see the plunger actually move and inspect the seals. 1 Quote Link to comment Share on other sites More sharing options...
Bill pearson Posted July 12, 2021 Share Posted July 12, 2021 Gents, what size are the pistons o rings? Struggling with non engaging unit and need to know what to order. thanks. Quote Link to comment Share on other sites More sharing options...
western Posted July 12, 2021 Author Share Posted July 12, 2021 O ring sizes in https://www.landypedia.de/index.php/Überholung_eines_GKN_Overdrives#O-Ringe Quote Link to comment Share on other sites More sharing options...
western Posted November 21, 2021 Author Share Posted November 21, 2021 Got some news on my OD, the piston/cylinder section is coming home soon with honed cylinders & new pistons, Big thanks to Vulcan Bomber for the work, next big job is carefully reassemble & then fit & see what happens, 2 Quote Link to comment Share on other sites More sharing options...
western Posted November 24, 2021 Author Share Posted November 24, 2021 Package from VB yestrday, OD piston chamber & new pistons are home, when I get chance the rebuild will begin. Quote Link to comment Share on other sites More sharing options...
western Posted December 5, 2021 Author Share Posted December 5, 2021 Spent this afternoon in my garage building up one overdrive from the 2 I have, just need a couple of gaskets for adaptor to transfer box & overdrive to adaptor, got 1 coming in post & other I can get from my local LR parts shop on Monday & some more ATF. a few photo's taken during the build up. 3 Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted December 5, 2021 Share Posted December 5, 2021 Very good luck with it! Quote Link to comment Share on other sites More sharing options...
western Posted December 5, 2021 Author Share Posted December 5, 2021 Yes I'm hoping it works, fingers crossed, I'm going to leave fitting it until after Xmas & back at home where I can work on it if things don't go well. Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 5, 2021 Share Posted December 5, 2021 It will be really good if this works. There are a number out there that had this issue and if you and David have found a cure for it then that will be excellent. I wonder how many people are still running these?! There are only a few of us on here I think. 1 Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted December 5, 2021 Share Posted December 5, 2021 I don't miss any of those bits 😉 Mo Quote Link to comment Share on other sites More sharing options...
western Posted December 5, 2021 Author Share Posted December 5, 2021 These are the new pistons David (VB) made after honing the piston bores on the overdrive casing, new pistons have new viton seals & a wiper ring, 2 Quote Link to comment Share on other sites More sharing options...
western Posted January 22, 2022 Author Share Posted January 22, 2022 GKN is all built up & waiting fitting, hoping to do the fit in March when I'm on hols from work for 8 days. Quote Link to comment Share on other sites More sharing options...
reb78 Posted January 22, 2022 Share Posted January 22, 2022 6 weeks to wait!! Quote Link to comment Share on other sites More sharing options...
western Posted January 22, 2022 Author Share Posted January 22, 2022 Yep. I need the time to fit it & then do some drives with it working, without having to rush to have the 110 ready to drive to work next day if it still gives the same intermittent fault then it will be removed & probably left forgotten in the garage. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 23, 2022 Share Posted January 23, 2022 Good luck Ralph, I really hope it works for you. Having experienced GKN overdrives first hand, I won't hold my breath though. Mo 2 Quote Link to comment Share on other sites More sharing options...
Troll Hunter Posted December 9, 2022 Share Posted December 9, 2022 So what was the result, Ralph? Please don't leave us in suspense! Mike Quote Link to comment Share on other sites More sharing options...
western Posted December 9, 2022 Author Share Posted December 9, 2022 It's still sat on the bench in my garage, haven't had enough free time or decent weather to get under 110 to refit it yet. Quote Link to comment Share on other sites More sharing options...
Kozzy Posted August 30, 2023 Share Posted August 30, 2023 On 12/9/2022 at 9:22 AM, western said: It's still sat on the bench in my garage, haven't had enough free time or decent weather to get under 110 to refit it yet. hey Ralph, did you get a chance to fit it yet? Quote Link to comment Share on other sites More sharing options...
western Posted August 30, 2023 Author Share Posted August 30, 2023 Not yet, hopefully soon. Quote Link to comment Share on other sites More sharing options...
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