Classic mini gearbox rebuild.

[@grahamwoodier5066]

I completed my gearbox rebuild over the Summer (2023) and it is now back in the car. Having watched you struggle to tighten the big nuts I decided to screw a wooden block just above my workbench and do the job at waist height - much easier! Also, I have stopped using Hylomar Blue on my gaskets (too messy). I now use Loctite 3020 on low-risk gaskets and Delta D203 RTV for gaskets that are at a high risk of leaking (like the timing chain cover for example). Gearbox no longer crunches when changing down to 2nd and so far it isn't leaking.

[@josephberrie9550]

why are those two large nuts torqued up so tight I would have thought it would be enough to maybe 120 foot lbs and then the lock tab.. what do you gain by massivly tightening up these nuts so much

[@grahamwoodier5066]

Interesting video - thanks! How did you decide which parts to renew when you were doing this job? What was wrong with the gearbox that caused you to consider a rebuild? I am planning to tackle one of mine this year when the weather warms up as it has an issue with the synchromesh when changing down into 2nd gear.

[@mrfid72]

Thanks for your kind comments! as for why i rebuilt the gearbox it was mainly because it was of an "unknown mechanical condition" and because i had stripped the engine it seemed daft not to refresh the gearbox. (it also leaked oil) i also enjoy doing things like that!

[@grahamwoodier5066]

@@mrfid72 Thanks. Where did you source the replacement parts from? Do you have the gearbox back in the car or is this something for later in the year?

[@mrfid72]

@@grahamwoodier5066 Most of the parts came from mini sport, they do a gearbox rebuild kit for £276, if you go via Guessworks then its a lot more expensive. The engine/gearbox has all been built back up but i have still got to rebuild the front of the mini so it will stay as it is for the time. I want to keep the front subframe bear so i can bolt it back and help to align the front panel etc.