series gearbox diagnosis required

hiya
mates series 2a box had a bit of a peculiar fault the other day, ive
never come across it, so im asking here to see if anyone here has,,,


he was running around in his 1969 109 for ages, sort of round town
driving, no problems,

then he went on the motorway the other day and did a constant 65 mph
for about 20 or so miles, when he came off the m/way he couldnt
de-select 4th gear, he says it was solid, neither could he take the
overdrive out of gear. he stopped at the slip road junction and the
clutch disengaged drive ok but he couldnt select any gear other than
the one it was already in.He said he could smell hypoid oil in the
cab.


he got home and left the landy a while, when it cooled down
everything was fine, lost a bit of oil but he topped it up and has
been driving around town for a week now ( not literally mind) with no
problems.

what can be causing this problem, it obviously only happens when the
oil and box get hot.

hes running a transit 2.5 diesel with a series 2/2a box ( no synchro
on 1st and 2nd)

any ideas....



andy

On Wed, 11 May 2005 22:34:29 +0100, dave <[email protected]> wrote:

>hiya
>
>any ideas....

Some of it could just be series landrover gearboxes in general! - They
do do wierd things sometimes.

The gearbox on my mates 2A used to do funy things like that
occasionally - a couple of times he got stuck in a gear and all he
could do was stick with it or stop and wait for a while - after which
it usually came back (not sure if the overdrive was in or out at the
time).
He had me on my way out to give him a tow home one time before he rang
me to cancel as it had started working again. Each time we did it we
though it was the end of the gearbox but it just kept going!
..
Eventually we took the box out (to replace it along with the engine).
When we took the overdrive off, we found that the shaft the overdrive
connects to (is this the mainshaft?) was actually snapped in 2!
It was a jagged break and it must have stayed together while the
overdrive was on, but once we took it out, half the shaft just fell
out!
It was quite impressive that it was still working (relatively) OK.
This landy had both been agressively off roaded and driven down the
motorway at high speed not long before.

In message <[email protected]>
dave <[email protected]> wrote:

> hiya
> mates series 2a box had a bit of a peculiar fault the other day, ive
> never come across it, so im asking here to see if anyone here has,,,
>
>
> he was running around in his 1969 109 for ages, sort of round town
> driving, no problems,
>
> then he went on the motorway the other day and did a constant 65 mph
> for about 20 or so miles, when he came off the m/way he couldnt
> de-select 4th gear, he says it was solid, neither could he take the
> overdrive out of gear. he stopped at the slip road junction and the
> clutch disengaged drive ok but he couldnt select any gear other than
> the one it was already in.He said he could smell hypoid oil in the
> cab.
>
>
> he got home and left the landy a while, when it cooled down
> everything was fine, lost a bit of oil but he topped it up and has
> been driving around town for a week now ( not literally mind) with no
> problems.
>
> what can be causing this problem, it obviously only happens when the
> oil and box get hot.
>
> hes running a transit 2.5 diesel with a series 2/2a box ( no synchro
> on 1st and 2nd)
>
> any ideas....
>
>
>
> andy

Doing remote gearbox diagnosis is always a bit tricky, but the first
thing I'd have a look at is the detent springs/balls. These can be
looked at with the gearbox in situ by removing the top cover - just
*don't drop anything into the box!*.
You may be lucky and all it is a dodgy spring and/or ball.
Assuming the clutch really is releasing, the next suspect would be
the selector forks. You can see a bit of these with the cover off, and
it is feasible to take them out with the box in place (dammed fiddly
getting them back in though!). A very worn selector could be your
problem.

After that, if your certain that all the external type things are
ok, then its time to start thinking about a strip-dowm.

Just another thought...... Series boxes do have a habit of deciding,
for no obvious reason, to stick with one gear selected and no amount
of swearing/hitting/blaming the wife will allow the current gear
to be deselcted and even neutral found. All of a sudden things
go back to normal and it may never happen again. It could be that!

Richard


--
www.beamends-lrspares.co.uk [email protected]
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Powered by Risc-OS - you won't get a virus from us!!
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"beamendsltd" <[email protected]> wrote in message
news:79b4cc694d%[email protected]...
> In message <[email protected]>
> dave <[email protected]> wrote:
>
> > hiya
> > mates series 2a box had a bit of a peculiar fault the other day, ive
> > never come across it, so im asking here to see if anyone here has,,,
> >
> >
> > he was running around in his 1969 109 for ages, sort of round town
> > driving, no problems,
> >
> > then he went on the motorway the other day and did a constant 65 mph
> > for about 20 or so miles, when he came off the m/way he couldnt
> > de-select 4th gear, he says it was solid, neither could he take the
> > overdrive out of gear. he stopped at the slip road junction and the
> > clutch disengaged drive ok but he couldnt select any gear other than
> > the one it was already in.He said he could smell hypoid oil in the
> > cab.
> >
> >
> > he got home and left the landy a while, when it cooled down
> > everything was fine, lost a bit of oil but he topped it up and has
> > been driving around town for a week now ( not literally mind) with no
> > problems.
> >
> > what can be causing this problem, it obviously only happens when the
> > oil and box get hot.
> >
> > hes running a transit 2.5 diesel with a series 2/2a box ( no synchro
> > on 1st and 2nd)
> >
> > any ideas....
> >
> >
> >
> > andy
>
> Doing remote gearbox diagnosis is always a bit tricky, but the first
> thing I'd have a look at is the detent springs/balls. These can be
> looked at with the gearbox in situ by removing the top cover - just
> *don't drop anything into the box!*.
> You may be lucky and all it is a dodgy spring and/or ball.
> Assuming the clutch really is releasing, the next suspect would be
> the selector forks. You can see a bit of these with the cover off, and
> it is feasible to take them out with the box in place (dammed fiddly
> getting them back in though!). A very worn selector could be your
> problem.
>
> After that, if your certain that all the external type things are
> ok, then its time to start thinking about a strip-dowm.
>
> Just another thought...... Series boxes do have a habit of deciding,
> for no obvious reason, to stick with one gear selected and no amount
> of swearing/hitting/blaming the wife will allow the current gear
> to be deselcted and even neutral found. All of a sudden things
> go back to normal and it may never happen again. It could be that!
>
> Richard
>
> Had the same problem. It was the detent springs. Bit of a sod to >change
but possable without lumping the box out. Got mine from >paddocks. Order a
couple more than you need, They are (were) >cheep.

>Ricepudding.
> www.beamends-lrspares.co.uk [email protected]
> Running a business in a Microsoft free environment - it can be done
> Powered by Risc-OS - you won't get a virus from us!!
> Helping keep Land Rovers on and off the road to annoy the Lib Dems