Difference between Rover & Salisbury axles??

[Lance White]

How do I know whether I've got a Rover or Salisbury rear axle on my S3 SWB
(1975)? What's the difference between them as they seem to be treated the
same in the Haynes manual? I need to change oneof the hub oil seals (or are
they the same at this point).

Also how on earth are you supposed to put the oil in through the fairly
small (vertical) filler/level hole?

Sorry if these are silly newbie questions.

Cheers

Lance

[Christopher Seaman]

> Also how on earth are you supposed to put the oil in through the fairly
> small (vertical) filler/level hole?
>
>
> Sorry if these are silly newbie questions.
>
> Cheers
>
> Lance

When you buy a gallon container also get a litre bottle. connected to the
lid is about 6 inches of pipe. Fill the litre bottle up from the gallon
container ,place the pipe in the hole then carefully squeeze the bottle.
>
>

[N Warburton]

Bascialy if the diff housing looks the same as the front you have a Rover
rear which was standard on the swb. The salisbury was only fitted to the lwb
as standard. If the rear diff housing has a plate covering it on the rear of
the axel you have a sailsbury diff. I cant rember off hand if the seals are
the same or not but i belive they are.
Yours
Neil
Lance White <la...@logicscope.com> wrote in message
news:968681076.10729.0...@news.demon.co.uk...

[Willy Dewolf]

Are there 'technical' differences? Which one is the best?
willy
N Warburton heeft geschreven in bericht
<39bd...@news.server.worldonline.co.uk>...

[Alex]

Depends on your point of view. The rover diff is the ENV style diff, where the
crown, and pinion come out with the nose cone. This makes them easy to assemble
and repair (or I should say eaiser!) and simplifies the job of removing the
broken stubs of halfshafts somewhat. Also, the diff can be set up, it preload,
and mesh pattern with the diff out of the casing.

The salisbury axle uses the case to provide the pre-load onto the diff, and as
such the diff cannot be removed from the casing without stretching it. This is
quite difficult and can result in the casing being overstretched and ruined in
the process. Plus when setting them up you have to stretch the casing again to
add or remove shims. The upside of the salisbury type is that they are much
stronger, which is why they were used on the 109" 1 tonne model.

Which answers another of your questions. As far as I can tell, your SWB would
never have been fitted with a Salisbury diff, as these were only fitted to the 1
Tonne LWB 109". The way to tell is to look at the diff. If it's Rover (or ENV)
it will have a ring of about 10 bolts on the side where the prop goes into it,
which split the nose-cone away from the casing. A salisbury axle has the bolts
securing an access plate on the rear of the axle casing.

As for oil, buy a 1 litre bottle of EP90 which has a long spout about 6-8" on
it. Then buy a couple of gallons of EP90, if you intend to replace all the
fluids. You will need it.

The seals, I think are identical. Check with the suppliers, as they will know.
Only the defender ueses different seals, which fit over the stub axle, but are
too small for the hubs. It's worth changing the seals if you don't know the
history, as they can leak EP90 all over the brake shoes. Also, get a pair of
felt seals for the ends of the halfshafts, as these leak EP90 onto the wheels.
While you've got the hubs off, take the opportuinty to change the seals on the
slave cylinders as well. Check the bores and pistons, and clean off any dirt
with a medium grade emery pad (pad, not paper!) The wheel bearings shouldn't
need attention, but rough running may indicate a new set is required. Don't
overtighten the hub nuts, as your bearings will then last about 3 months.

Alex

[Alex]

Alex