Defender 90 2.5TD drinks oil

Hi!

Our Defender 90TD (19j-engine) started drinking oil like a sailor! The
stuff is here cheaper than Diesel fuel, but I think it is not a good
habit to drink 1l of oil every 200km

What we already know: Somehow oil finds its way into the air intake
filter - it is soaked with oil.
What already has been done: The valve stem seals (or however those
small plastic parts are called in English) have been changed, with no
big success. The valve cover sealing has been exchanged and still lets
some oil get out, but only some drops, not very much. The dip stick
seal has been changed, too, because some oil found its way out there.
When accelerating there is some smoke.
There is no coolant loss, and no oil in the cooling system.
The engine runs so far fine (some power loss due to the oily filter),
it starts just fine, even when it is cold outside.
The turbo charger seems not to spill oil, and at least in idle there
is no especially high pressure when I removed the oil refill cap and
put my hand there.

Any ideas what to look for to stop this? Any hint is highly
appreciated!

The symptoms you describe are the hallmarks of a worn out engine, which is
breathing heavily because it is shot.
Sounds like the boars and pistons are worn, allowing combustion gasses to
pass by the rings and presurise the crank case, which if it was blowing out
the dipstick tube before you replaced the seal indicates just how bad it is.
While you say that you suspect the power is down due to oily filter, is it
probably indicative of a shot engine, but you can check this by driving
without a filter and see if the smoke and power improves. I take it the
smoke has a blue coulor to it, if so then besides a reboar or replacement
there is no quick / cheap fix.
If it were my engine I would pull the head off and inspect the boars, to
confirm the state before comitting to a potentially expensive repair, and
also consider that if the boars are worn, then the crank and bearings will
also prolly need attention, along with the injection eqpt.
Hope this helps.

"Ralph A. Schmid, DK5RAS" <[email protected]> wrote in message
news:[email protected]...
> Hi!
>
> Our Defender 90TD (19j-engine) started drinking oil like a sailor! The
> stuff is here cheaper than Diesel fuel, but I think it is not a good
> habit to drink 1l of oil every 200km
>
> What we already know: Somehow oil finds its way into the air intake
> filter - it is soaked with oil.
> What already has been done: The valve stem seals (or however those
> small plastic parts are called in English) have been changed, with no
> big success. The valve cover sealing has been exchanged and still lets
> some oil get out, but only some drops, not very much. The dip stick
> seal has been changed, too, because some oil found its way out there.
> When accelerating there is some smoke.
> There is no coolant loss, and no oil in the cooling system.
> The engine runs so far fine (some power loss due to the oily filter),
> it starts just fine, even when it is cold outside.
> The turbo charger seems not to spill oil, and at least in idle there
> is no especially high pressure when I removed the oil refill cap and
> put my hand there.
>
> Any ideas what to look for to stop this? Any hint is highly
> appreciated!
I'll quote from an article i saw at http://www.glencoyne.co.uk/enghist.htm

2495cc turbodiesel, overhead valve, type 19J: Given the strength and
reliability of the 2.5 diesel, you can understand why Land Rover thought it
would cope with turbocharging, but the result was a warranty nightmare.
2.5TDs can fail in any number of ways, but the most common seems to be
internal cracks developing in the cylinder block. This gives the same
symptoms as a blown head gasket or cracked cylinder head, but is not
repairable. Due to a defective design of crankcase breather, these engines
also tend to dump large amounts of engine oil into the air filter housing,
which turns the paper air filter into a soggy black lump. This in turn
leads to oil being drawn into the air intake, causing the engine to 'run
away' and self-destruct.

that is a little worrying don't you think? time to modify the breather I
reckon and be certain you don't overfill the sump

Derek

"Derek" <[email protected]> wrote:

>time to modify the breather I
>reckon and be certain you don't overfill the sump

What kind of modification do you recommend?

"Ralph A. Schmid, DK5RAS" <[email protected]> wrote in message
news:[email protected]...
> "Derek" <[email protected]> wrote:
>
> >time to modify the breather I
> >reckon and be certain you don't overfill the sump
>
> What kind of modification do you recommend?

Vent it to the air not the filter, that is to say, pull the crankcase
breather tube off the ait filter houseing and fix it down wards, maybe with
an extension tube, so the oil drains to the ground, away from the hot
exhaust, brakes etc.

TonyB

"TonyB" <[email protected]> wrote:

>Vent it to the air not the filter, that is to say, pull the crankcase
>breather tube off the ait filter houseing and fix it down wards, maybe with
>an extension tube, so the oil drains to the ground, away from the hot
>exhaust, brakes etc.

OK, so we will take the hose off the air inlet hose (and close the air
inlet hose at this place) and put some bottle at the end of the
crankcase breather tube, to find out how much oil collects there.

Ralph A. Schmid, DK5RAS wrote:
> "TonyB" <[email protected]> wrote:
>
>
>>Vent it to the air not the filter, that is to say, pull the crankcase
>>breather tube off the ait filter houseing and fix it down wards, maybe with
>>an extension tube, so the oil drains to the ground, away from the hot
>>exhaust, brakes etc.
>
>
> OK, so we will take the hose off the air inlet hose (and close the air
> inlet hose at this place) and put some bottle at the end of the
> crankcase breather tube, to find out how much oil collects there.

Exactly

--
EMB

"EMB" <[email protected]> wrote in message
news:[email protected]...
> Ralph A. Schmid, DK5RAS wrote:
>> "TonyB" <[email protected]> wrote:
>>
>>
>>>Vent it to the air not the filter, that is to say, pull the crankcase
>>>breather tube off the ait filter houseing and fix it down wards, maybe
>>>with
>>>an extension tube, so the oil drains to the ground, away from the hot
>>>exhaust, brakes etc.
>>
>>
>> OK, so we will take the hose off the air inlet hose (and close the air
>> inlet hose at this place) and put some bottle at the end of the
>> crankcase breather tube, to find out how much oil collects there.
>
> Exactly
>
> --
> EMB
I vented mine into the chassis helps keep the tin worms at bay

Icky