Hi Austin.....you seem to know about the 'cross drilled shaft' syndrome
which seems to have more versions of half truth, invention, rumour and
confusion surrounding it than just about anything else I've read about Disco
mechanicals. Can you clarify whether my late N Reg 300TDi will definately
have this problem or not? Despite having a complete main dealer service
record, they cannot say for sure whether the gearbox was modified at
factory, or retro modified or unmodified and vulnerable to early failure.
There arrears to be no simple inspection process or marking that can
estblish if the mod has been done.
Other people say the better mod is some kind of simple oil deflecting baffle
fitted to the box.Others say you can look into the box and if it's near
death all the upper cogs and shafts will be dry and dusty with metal shards.
Others say if its quiet and smooth, leave it alone and don't even change the
oil! All a bit confusing and pretty serious confusion for a prospective
terminal failure...Any views?
Keith
"Austin Shackles" <
[email protected]> wrote in message
news:
[email protected]...
> On or around Mon, 22 Nov 2004 17:31:43 +0000 (UTC), "Stuart Adair"
> <[email protected]> enlightened us thusly:
>
> >I am thinking about buying a Discovery 300 TDI ES but cant decide whether
to
> >go for manual or auto.
> >
> >Most of my driving is around town, but I do occasionally pull a 25ft
> >caravan.
>
> if you're looking at one new enough to have the infamous gearbox output
> shaft thing solved at the factory (the keywords are "cross-drilled gear"
in
> the transfer box) then it's really a matter of personal choice. Probably
a
> manual will give you an mpg or two more.
>
> The 4-speed auto though is a damn' good box, at makes a very good drive in
a
> LR - I've heard it said that the TDi+auto combo can be slow off the mark -
> the TDi wants about 2000 revs on it for a fast take-off, so the turbo's
> doing something useful. Really new TDi autos may have EDC (Electronic
> diesel control) in place of the normal mechanical pump, I gather this was
> remapped for the auto.
>
> manual 'box discos before about erm, 97 maybe (someone will know) don't
have
> the 'box mod done at the factory - you need it to have been done really,
or
> sooner or later you're looking at biggish repair bills.
>