Gearbox question
Posted: Thu May 26, 2022 5:23 pm
Hi,
I have recently had to change out Elsie May's gearbox, due to her deciding to 'lunch' her gears (first time I've had to fish out lumps of metal before I could add my waste oil to the creosote).
The dead gearbox was the ribbed case one I bought her with, so I've no idea how many miles it had done, before it did this. However, I got quite a few out of it before this happened, so I can't complain.
The second hand (rib case) one I replaced it with started well......
I engaged first and drove off the drive, drove off and changed through first, second and third without any issue. It was nice to be back behind the wheel of a Minor again.....
Then I put it into fourth, she went in smoothly enough, the momentum continuing nicely....
Then she jumped out!
And this is how it continued all the way to the show I was attending with MADMOG, in, out, in, out, back in and back out again.....
To be fair I got to the show (I wasn't turning back!!) and back home again, finally settling on putting it in fourth and holding it (firmly) in gear.
Reversing back down the drive into the garage wasn't an issue either, so shame about that one gear and odd that it was fourth.
I've heard of first and second getting worn and jumping out before but never fourth.
C'est la vie......
Anyway, I had one more second hand (rib case) gearbox to try. This one, I believe, is the one that I collected that came out of a Traveller that was loved, cared for, rebuilt...
And then shunted up the rear end and written off, much to the owners dismay.
I saw it under the covers, looking very sorry for itself, as it's bits were stripped and sold off by said owner.
So, I've fitted this gearbox, refilled the oil and today took it for a test drive and all the gears seem to function correctly, except that some are a bit 'stiff' to disengage.
First selects and comes out nicely, into second okay but then I have to 'bat' it a couple of times with the palm of my hand to get it back out again. Funnily enough, I found if the engine speed / speed is right she pops out and slots across straight into third, if not I can slot her into third okay, she then changes to fourth okay but, again, I have to bat her a couple of times with the palm of my hand to get her back out again.
Reverse is stiff to go in and also has to batted back out.
Overall the gearbox works, with effort. However, unless I miss-timed it, there was no 'crunching' involved during the changes, up or down.
Do you think that it just needs using, to wear it in?
Is this the sign of a rebuilt, then unused, gearbox?
It has been sat for a while, in the horizontal (as in use) position, not vertical, propped on one end, which I believe is the wrong way to store a MM gearbox.
The only other thing is she does is weep oil out passed her rear seal, so I've ordered a replacement, which I hope to pick up and fit tomorrow.
As always, many thanks in advance for any thoughts / advice on this subject.
Best wishes,
Mike.
I have recently had to change out Elsie May's gearbox, due to her deciding to 'lunch' her gears (first time I've had to fish out lumps of metal before I could add my waste oil to the creosote).
The dead gearbox was the ribbed case one I bought her with, so I've no idea how many miles it had done, before it did this. However, I got quite a few out of it before this happened, so I can't complain.
The second hand (rib case) one I replaced it with started well......
I engaged first and drove off the drive, drove off and changed through first, second and third without any issue. It was nice to be back behind the wheel of a Minor again.....
Then I put it into fourth, she went in smoothly enough, the momentum continuing nicely....
Then she jumped out!
And this is how it continued all the way to the show I was attending with MADMOG, in, out, in, out, back in and back out again.....
To be fair I got to the show (I wasn't turning back!!) and back home again, finally settling on putting it in fourth and holding it (firmly) in gear.
Reversing back down the drive into the garage wasn't an issue either, so shame about that one gear and odd that it was fourth.
I've heard of first and second getting worn and jumping out before but never fourth.
C'est la vie......
Anyway, I had one more second hand (rib case) gearbox to try. This one, I believe, is the one that I collected that came out of a Traveller that was loved, cared for, rebuilt...
And then shunted up the rear end and written off, much to the owners dismay.
I saw it under the covers, looking very sorry for itself, as it's bits were stripped and sold off by said owner.
So, I've fitted this gearbox, refilled the oil and today took it for a test drive and all the gears seem to function correctly, except that some are a bit 'stiff' to disengage.
First selects and comes out nicely, into second okay but then I have to 'bat' it a couple of times with the palm of my hand to get it back out again. Funnily enough, I found if the engine speed / speed is right she pops out and slots across straight into third, if not I can slot her into third okay, she then changes to fourth okay but, again, I have to bat her a couple of times with the palm of my hand to get her back out again.
Reverse is stiff to go in and also has to batted back out.
Overall the gearbox works, with effort. However, unless I miss-timed it, there was no 'crunching' involved during the changes, up or down.
Do you think that it just needs using, to wear it in?
Is this the sign of a rebuilt, then unused, gearbox?
It has been sat for a while, in the horizontal (as in use) position, not vertical, propped on one end, which I believe is the wrong way to store a MM gearbox.
The only other thing is she does is weep oil out passed her rear seal, so I've ordered a replacement, which I hope to pick up and fit tomorrow.
As always, many thanks in advance for any thoughts / advice on this subject.
Best wishes,
Mike.