Jemal shows MG Midget Ribcase gearbox rebuild Part 1 : Disassembly
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- Опубліковано 10 вер 2023
- Well. this one has been in the can (iPhone) for a couple of years, so it's about time I got several hours down to a watchable 20 minutes! This might be the most detailed look at rebuilding the Sprite Midget Morris Minor Ribcase Gearbox ever attempted... believe me editing the video takes MUCH longer than building the gearbox!
And this is only Part 1 (probably of 3). Please kindly understand that I have to hold the camera and point it at what I'm doing - or trying to with the other hand! I put the phone on a mount when possible, and I simply must use both hands. I was able to capture the best tricks and techniques and details of assembling the gears to the mainshaft and the slider hubs with all their tiny balls and springs. Then did the best I could to make it watchable!
But this is Part 1. I show how to take the gearbox apart and what to look for so you can put back together a good one. - Авто та транспорт
I really can't thank you enough for making these videos. I only wish you had done so several years ago.
Like 30.
Lol!
As far as I know, and I have looked for YEARS, this would be THE ONLY instructional video on how to disassemble and rebuild one of these transmissions.
This would put you firmly in the history books as a World Class Champion of the People in my opinion.
You would be doing me a monster size favor if you could show me the trick for holding the little balls and springs in that sliding assembly that 1st and 2nd use. The ring that the shift fork moves back and forth hold them in when it's together.
I spent four days messing with that and had several ball bearings disappear into another dimension while trying to put that back together. I finally wound up using a large screw type hose clamp and literally putting it back together inside a small box to keep the ball bearings from flying out all over my garage.
Another huge favor would be a detailed inspection and installation segment on the synchros.
My last request would be to ask you to give all the possible issues that one should look at for the problem of the transmission jumping out of gear on deceleration.
After I finally got mine back together it likes to jump out of 2nd on hard deceleration and I'm wondering if it may have something to do with those springs and ball bearings I had so much trouble with.
I have watched every other video you have put out on these rib case transmissions and I did some work on the detente ramps the bullets use to hold the gears in place that you suggested to make a more solid shift.
I really can't properly express my gratitude for you taking the time to make these videos, words are inadequate.
Thanks, Hugely,
Phil.
One possible reason for jumping out of gear when lifting off the throttle is the pinion bearing in the flywheel either worn, missing or mismatched to the length of the input shaft. Early cars had a bronze bearing but later cars had a roller bearing. I had a flywheel from an early car fitted to a later engine and the input shaft hardly touched the pinion bearing so I had to get a deeper oilite bearing machined to fit.
Ummmm, no. If the input shaft is not supported in the end of the crank (pilot bushing not pinion), there will be other big problems starting with the clutch and throwout bearing...
Phil, have look at the recent video on how to inspect a Mini gearbox for info on jumping out of gear. And I DO indeed show the things you ask about in the next part of the Ribcase rebuild. I'll try to get to it ASAP. My own Cooper S is on Hemmings auctions live right now so I have to tend to that for about a week still...
This video addresses the reasons for jumping out of gear:
ua-cam.com/video/82JAoaYlqbs/v-deo.html
Jemal, I have one of these waiting to be rebuilt but I don’t have the confidence to do it. This instructional video will help me do it myself. Cheers from the Emerald Isle.
Ah one of my favorite places! I hope it helps and that the camera movement isn't too annoying! I really couldn't show much with a stationary mount. In the next installments, I have to when I must use both hands, but it took so much time! I'll work on editing the next part as soon as possible.
This is very helpful! Thanks so much for taking the time!
Thanks for posting, look forward to the follow up videos. I swapped a core unit into my 69 sprite that looked visually okay but alas first gear sound like a bag of nails. Will be looking to go fully through a spare I have.
Thanks for the video. I have a smoothcase transmission, I hope its similar enough for me to disassemble and repair
Very very helpful video, these trans are rare birds for me. Where do you get your parts? I am in need of springs, balls and the dowels or bullets. I tried moss but they only had the balls. Thanks