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Buying a La 10

lomh 13
Posts: 37
Joined: Thu Jan 12, 2017 11:48 am
Location: France

Re: Buying a La 10

Post by lomh 13 »

Thanks for the input. Sorry for "game" it is a Google translation. Preload is correct I think.
Last edited by lomh 13 on Sun Jan 05, 2020 2:31 pm, edited 1 time in total.

Rolf B.
Posts: 123
Joined: Wed Apr 05, 2017 7:07 pm
Location: 68309 Mannheim, Germany

Re: Buying a La 10

Post by Rolf B. »

He means "to adjust the clearances".

Rolf B.

JT7196
Posts: 1131
Joined: Sat Feb 13, 2016 7:22 am

Re: Buying a La 10

Post by JT7196 »

Hi Tony, Im sorry to say that I have not had any experience stripping and re-building these axles to date, maybe someone out there can help ?

Cheers al :)

Simon Hyslop
Posts: 310
Joined: Wed May 04, 2016 3:30 pm

Re: Buying a La 10

Post by Simon Hyslop »

I haven't had to take one of these apart and they seem to give very little trouble - usually. However, what I think I can tell you is that the worm drive axles fitted to the LA10, 11 and 12/6 have no adjustment for the worm. There are various distance washers but they are of one size each. Has your one been apart and are all these present and in the right place ? The wheel is however adjusted by sleeves which are "adjusted" once the wheel is in the right location. I am not entirely clear on what "adjusted" means in this particular case as they are supposed to be made flush with joint faces once the wheel is in the right place and that may involve filing to size. Maybe someone has actually carried this out and knows more fully. The only items I see in the parts list for the rear axle which are called sleeves are 259073 - axle driving shaft sleeves.

There are two indelible marks on adjacent worm wheel teeth and these show where the wheel should be engaging with the worm.
I'd suggest that, if you suspect there is a meshing issue with the worm and wheel, it would be worth checking the mesh first using these marks with engineer's blue before taking anything apart. The wormwheel bearings are taper roller bearings (30209 or K30209, metric sequence) rather than ball bearings, maybe something has gone amiss with one of them? It would be interesting to know what you think is the trouble with the axle as the lack of available information suggests that they don't give much trouble and maybe there is something else requiring attention. I do have a spare diff unit complete which, in warmer weather, I'd be happy to explore the insides of in more detail but you may have passed that point before I can look at it on your own car. Something else to think about is the oil for the axle. It wants D140, not EP and nothing thinner. Hoping this is of some use in your search.

lomh 13
Posts: 37
Joined: Thu Jan 12, 2017 11:48 am
Location: France

Re: Buying a La 10

Post by lomh 13 »

Thanks for the inputs.
I don't know very well this car and I have no technical manuals. I bought it 6 mounth ago never used.
I just begin the overhauling
Image
For the rear axle, when I turn the entry flange, you have to turn 20 ° or so before the wheels turn. I don't know if it is correct

Simon Hyslop
Posts: 310
Joined: Wed May 04, 2016 3:30 pm

Re: Buying a La 10

Post by Simon Hyslop »

I shall investigate with either my 10 or the spare diff as soon as I can and report back, unless someone else beats me to it.

JT7196
Posts: 1131
Joined: Sat Feb 13, 2016 7:22 am

Re: Buying a La 10

Post by JT7196 »

Hi Robert , I wouldn't worry too much about that play, my LA 11 (Same Axle) has a similar amount of play, in fact it has done for the last 30 yrs.
Looks like you have plenty to get on with, without worrying about that Axle 😊😊😊

Cheers Al

bop
Posts: 118
Joined: Mon Feb 15, 2016 3:26 am
Location: Alberta Canada

Re: Buying a La 10

Post by bop »

Here is some info from "Motor Repair and Overhauling by Newnes vol 3"
1.jpg
2.jpg
3.jpg
Hope this helps
Bob

lomh 13
Posts: 37
Joined: Thu Jan 12, 2017 11:48 am
Location: France

Re: Buying a La 10

Post by lomh 13 »

Thank you for these informations.

Petelang
Posts: 239
Joined: Sat Feb 13, 2016 10:23 am
Location: Nottingham
Contact:

Re: Buying a La 10

Post by Petelang »

I have had very recent experience of the same kind of Differential from my Daimler Fifteen.
Quite by accident, I discovered a potential disaster just waiting to happen. After an oil change, quite a lot of discoloured oil drained out so I ventured to take the top cover off for a look inside. I then found a lot of sideways play in the pin between the planet gears in the diff assembly.
Subsequent strip and examination revealed the pin broken into three pieces and only held together by the sleeve it sits within. The pin housing was also badly worn and elongated.
Who knows when this might have decided to go "bang" and collapse into the diff assembly creating a proper mess.
There was no real noise coming from the diff before I found this so it's well worth having a proper look inside, especially given the rarity and potential expense of repair.
Fortunately for me, Marcel was able to make a new pin and get it suitably hardened and as of yesterday it's back running sweetly.
I must admit, the whole job has been a long slog and extremely scary as taking a diff apart has always seemed like Voodoo to me, something I cannot understand, and all of this came about just because I was a bit concerned about a noisy rear wheel bearing. It expanded into a brake and hub overhaul, diff rebuild, new rear springs and shackle pins but it's now done and along with much of the rest of the cars mechanical bits, has had a full intervention. Regrettably, so has my bank ballance!
Peter
Peter Langridge
Cloud Nine Classic Weddings, Nottingham.

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