Pete Lewis Posted December 20, 2022 Report Share Posted December 20, 2022 thats a good idea finding used boxes that are "good" is getting a rare breed these days just remeber the guys on production bashing these together were not brain surgeons yes they had some tooling to make these but you can do a lot witha bench a vice and some advice on here some get paranoid about them but when its 50 yrs old forget utopia and let the hands and wallet take a compromise its all do -able Pete Link to comment Share on other sites More sharing options...
Josef Posted December 20, 2022 Report Share Posted December 20, 2022 1 hour ago, Kevin Atkins said: Really helpful replies everyone. So the rebuild kit is on its way, and then that's got me thinking.. I might see if I can locate another box suitable for rebuild and fix that, then flip that in.. otherwise, never having done this before, if I run into trouble I've got a car with no gearbox. I've never tried a gearbox build before, so it'll be a learning experience and all part of the fun, but I don't want the added pressure of having to have it done in short order. And then there's a big list of other things to sort on the car, but she runs and drives, Rome wasn't built in a day.. I'll post back when I've got stuck in to the gearbox build.. Hope everyone has a cracking Christmas! If you are going to do this I would recommend buying one in person if at all possible, and taking the top off to check how knackered the gears are before agreeing to buy. I had exactly the same idea, and ended up with two pretty shagged boxes buying sight unseen online (one from a supplier I would’ve considered pretty reputable too) which ended up costing a fair bit more to fix. As Pete says, good ones will be getting thin on the ground, and ones that’re not in a running car, well there may well be a reason for that. I would definitely still go for the approach or rebuilding a spare though as you’re quite right in that it allows you to take your time. Especially if you find you need more parts and end up having to wait a while for them. Link to comment Share on other sites More sharing options...
Paul H Posted December 20, 2022 Report Share Posted December 20, 2022 I recently bought a second hand gearbox suitable for a Vitesse mk2 . I bought unseen from a known source and purchased for spares / rebuild . If I started a new thread would the experts on here guide me and anybody who wants to learn the basics and point out the good bad and the ugly . Hopefully the thread would prove to be a useful tutorial Paul Link to comment Share on other sites More sharing options...
Peter Truman Posted December 20, 2022 Report Share Posted December 20, 2022 Paul H I agree I've watched this thread & now seriously question "Have I put all the Parts back together correctly", mine was complicated as I fitted a single rail internals into a 3 rail case with J type overdrive. Interesting all the indent springs in the 3/4 syncro hub were broken, so they were replaced also new ball bearings, there's been no mention of potential damage of these so was mine a one off?. I know in retrospect that I should have used a 3 rail reverse spacer tube instead of the longer single rail I assume this would have avoided me to seriously bend the reverse actuating lever!! Link to comment Share on other sites More sharing options...
Paul H Posted December 20, 2022 Report Share Posted December 20, 2022 8 minutes ago, Peter Truman said: Paul H I agree I've watched this thread & now seriously question "Have I put all the Parts back together correctly", mine was complicated as I fitted a single rail internals into a 3 rail case with J type overdrive. Interesting all the indent springs in the 3/4 syncro hub were broken, so they were replaced also new ball bearings, there's been no mention of potential damage of these so was mine a one off?. I know in retrospect that I should have used a 3 rail reverse spacer tube instead of the longer single rail I assume this would have avoided me to seriously bend the reverse actuating lever!! I’ll take that as a YES and start the post tomorrow with a pic . The first ? being having I bought the correct box Paul Link to comment Share on other sites More sharing options...
johny Posted December 21, 2022 Report Share Posted December 21, 2022 11 hours ago, Peter Truman said: Paul H I agree I've watched this thread & now seriously question "Have I put all the Parts back together correctly", mine was complicated as I fitted a single rail internals into a 3 rail case with J type overdrive. Interesting all the indent springs in the 3/4 syncro hub were broken, so they were replaced also new ball bearings, there's been no mention of potential damage of these so was mine a one off?. Ive found broken springs in hubs before... Link to comment Share on other sites More sharing options...
johny Posted December 21, 2022 Report Share Posted December 21, 2022 Never checked the springs in the 3 rails though but maybe if they fail its more noticeable... Link to comment Share on other sites More sharing options...
Josef Posted December 21, 2022 Report Share Posted December 21, 2022 11 hours ago, Paul H said: I’ll take that as a YES and start the post tomorrow with a pic . The first ? being having I bought the correct box Paul Well, to be 100% sure if the internals are correct you’ll have to count the teeth on the gears, figure out the ratios and check that’s what you expect. The casings are interchangeable between 4 and 6 cyl models made in similar time periods so the gearbox number may be erroneous / misleading. I’d recommend the videos I linked earlier in this thread too Paul if you’re going to have a go yourself. Having that visual look at the internals before stripping my own box was very helpful for me. So much so that I rebuilt three in short order! Link to comment Share on other sites More sharing options...
Josef Posted December 21, 2022 Report Share Posted December 21, 2022 14 minutes ago, johny said: Never checked the springs in the 3 rails though but maybe if they fail its more noticeable... I had one rail detent spring broken in a top cover. I had never seen the box running, but the spring was obviously broken and shorter than the others when I stripped the cover. Link to comment Share on other sites More sharing options...
Pete Lewis Posted December 21, 2022 Report Share Posted December 21, 2022 spring failure ( is not uncommon they do a lot of work) but in the synchro hubs can be as silly as wrong springs 1/2 are different lenghts to 3/4th you should not mix them pete Link to comment Share on other sites More sharing options...
johny Posted December 21, 2022 Report Share Posted December 21, 2022 I believe youre supposed to use shims under the hub springs to get the right tension so the hub only moves under a certain force. Now that is advanced gearbox rebuilding😂 Link to comment Share on other sites More sharing options...
Kevin Atkins Posted January 14, 2023 Author Report Share Posted January 14, 2023 Just a quick update.. so I didn't manage to do anything with the gearbox over Christmas - I'm keeping my eyes peeled for another box I can use for rebuild with the parts I've got. In the meantime, I have lined the underside of the transmission cover with Silent Coat and added extra sound deadening inside the cabin and the noise has been attenuated to an acceptable level when driving. There's plenty else I need to be doing with the car in the meantime! Thanks for all the support and encouragement. Link to comment Share on other sites More sharing options...
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