Black diesel smoke on start up. Why..?

A newby diesel question. Every time I start my 300tdi I get a cloud of dark
smoke from the exhaust. This clears within seconds and the vehicle drives
fine without any smoke, until the next time it is started. Doesn't seem to
matter how long the vehicle stands between runs, it gives the same amount of
smoke. I think the engine has done about 100k.

Thanks.

M

My 200TDi is the same, I will watch the following posts closely...
--
Wolverine
Big Red '93 110 CSW

totally normal they all do, only worry if the smoke is white ( water leak,
head gasket ) or bluish ( engine oil, rings )


"McBad" <[email protected]> wrote in message
news:[email protected]...
> A newby diesel question. Every time I start my 300tdi I get a cloud of
dark
> smoke from the exhaust. This clears within seconds and the vehicle drives
> fine without any smoke, until the next time it is started. Doesn't seem
to
> matter how long the vehicle stands between runs, it gives the same amount
of
> smoke. I think the engine has done about 100k.
>
> Thanks.
>
> M
>
>

Black smoke is unburned diesel that has been fired in during start up. Nothing at all to worry about.

"Hirsty's" <[email protected]> wrote in message
news:[email protected]...
> totally normal they all do, only worry if the smoke is white ( water leak,
> head gasket ) or bluish ( engine oil, rings )
>
>
although older less advanced diesels can white smoke for a few minutes after
start up while they warm up. When I was in the TA it was always interesting
when we started the Bedford MJs up. If we hadn't been discovered, we were
then!

--
Simon Isaacs

Peterborough 4x4 Club Vice Chairman, Newsletter Editor and Webmaster (how
much more....)
3.5V8 100" Hybrid, now LPG converted
Part owner of 1976 S3 LWT, currently under restoration
Suzuki SJ410 (Girlfriend's) 3" lift kit fitted, body
shell now restored and mounted on chassis, waiting on a windscreen and MOT
Series 3 88" Rolling chassis...what to do next
1993 200 TDi Discovery (the Pug 106 is dead, long live the Pug)

Peterborough 4x4 Club http://www.peterborough4x4.co.uk

"McBad" <[email protected]> wrote in message
news:[email protected]...
> A newby diesel question. Every time I start my 300tdi I get a cloud of
dark
> smoke from the exhaust. This clears within seconds and the vehicle drives
> fine without any smoke, until the next time it is started. Doesn't seem
to
> matter how long the vehicle stands between runs, it gives the same amount
of
> smoke. I think the engine has done about 100k.
>
> Thanks.
>
> M
>
>

Phew. Sounds as if I can relax! Had visions of something very expensive...

Cheers - off to play in the mud in the Forest of Dean now, first time.
Here we go, here we go, here we go, etc

M

In news:[email protected],
McBad <[email protected]> expelled:
> Phew. Sounds as if I can relax! Had visions of something very
> expensive...
>
> Cheers - off to play in the mud in the Forest of Dean now, first time.
> Here we go, here we go, here we go, etc
>
Ahhhhaaa......stuck, new dent from tree, stuck again


--
EMB
change two to number to reply

"McBad" <[email protected]> wrote in
news:[email protected]:

>
> "McBad" <[email protected]> wrote in message
> news:[email protected]...
>> A newby diesel question. Every time I start my 300tdi I
>> get a cloud of
> dark
>> smoke from the exhaust. This clears within seconds and
>> the vehicle drives fine without any smoke, until the next
>> time it is started. Doesn't seem
> to
>> matter how long the vehicle stands between runs, it gives
>> the same amount
> of
>> smoke. I think the engine has done about 100k.
>>
>> Thanks.
>>
>> M
>>
>>
>
> Phew. Sounds as if I can relax! Had visions of something
> very expensive...
>
> Cheers - off to play in the mud in the Forest of Dean now,
> first time. Here we go, here we go, here we go, etc
>
> M
>
>
>

Get ready for your next scare.

Do you hear any squeaking from the water pump area??

Sorry! Couldn't help it<G>.

Mine is back, by the way.

Derry

Mine squeaks but only when it rains ????




> Get ready for your next scare.
>
> Do you hear any squeaking from the water pump area??
>
> Sorry! Couldn't help it<G>.
>
> Mine is back, by the way.
>
> Derry

I get that with my petrol engine


--
þT

L'autisme c'est moi

"Space folds, and folded space bends, and bent folded space contracts and
expands unevenly in every way unconcievable except to someone who does not
believe in the laws of mathematics"

"McBad" <[email protected]> wrote in message
news:[email protected]...
> A newby diesel question. Every time I start my 300tdi I get a cloud of
dark
> smoke from the exhaust. This clears within seconds and the vehicle drives
> fine without any smoke, until the next time it is started. Doesn't seem
to
> matter how long the vehicle stands between runs, it gives the same amount
of
> smoke. I think the engine has done about 100k.
>
> Thanks.
>
> M
>
>

"Hirsty's" <[email protected]> wrote in
news:[email protected]:

> Mine squeaks but only when it rains ????
>
>
>
>
>> Get ready for your next scare.
>>
>> Do you hear any squeaking from the water pump area??
>>
>> Sorry! Couldn't help it<G>.
>>
>> Mine is back, by the way.
>>
>> Derry
>
>

Lots on Google about this, also suggested "cures". It is in fact
the "fan" belt and the best explanation I had was from the tech
department of a belt manufacturer. He said it was due to glaze
on the tension pulley -- similar to the effect when you draw
your finger down a clean windscreen. Apparently, they all do it
(300TDi's) but it's nothing to worry about. Quite fun reading
the suggested "cures" though!<VBG>

Derry

Larry wrote:
> I get that with my petrol engine
>
>
>
> "McBad" <[email protected]> wrote in message
> news:[email protected]...
>> A newby diesel question. Every time I start my 300tdi I get a cloud
>> of dark smoke from the exhaust. This clears within seconds and the
>> vehicle drives fine without any smoke, until the next time it is
>> started. Doesn't seem to matter how long the vehicle stands between
>> runs, it gives the same amount of smoke. I think the engine has
>> done about 100k.
>>
>> Thanks.
>>
>> M

I get a great big cloud of white smoke from my petrol engine (2.25)

does that mean mine is racist or its something to do with the valves?

Nigel
--
Lightweight 1979
nigelATleginDOTorg
Google first
ask later

Derry Argue <derry(delete)@adviegundogs.co.uk> wrote in message news:<[email protected]>...

> Lots on Google about this, also suggested "cures". It is in fact
> the "fan" belt and the best explanation I had was from the tech
> department of a belt manufacturer. He said it was due to glaze
> on the tension pulley -- similar to the effect when you draw
> your finger down a clean windscreen. Apparently, they all do it
> (300TDi's) but it's nothing to worry about. Quite fun reading
> the suggested "cures" though!<VBG>

Not neccessarily. The squeak from mine had been getting progressively
worse, even with deglazing the tensioner, using belt dressing etc.
etc. Finally I gave in and bought a new tensioner assembly - and I
now have silence. Well, apart from the engine noise and the strange
squeak that only happens when I turn left, that is...

The old tensioner has in the order of 2-3mm slop in the pulley.

Peter

In article <[email protected]>, Peter wrote:
>
> The old tensioner has in the order of 2-3mm slop in the pulley.
>
> Peter

I rebuilt my tensioner with a new bearing, a bit cheaper than the replacing
the whole thing.

Still squeaks a bit on damp mornings or after driving through a ford though.

I've given up trying to shut it up now.

--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.

Simon Barr <[email protected]> wrote in news:2ktapgF586mfU1@uni-
berlin.de:

> I've given up trying to shut it up now.

Me too. I think it's called "auditory fatigue" or something like
that.

But I didn't mean to suggest that glazed tensioner was the only
known cause of squeaks in a 300Tdi. Perish the thought!

Derry

Derry Argue <derry(delete)@adviegundogs.co.uk> wrote in message news:<[email protected]>...

> But I didn't mean to suggest that glazed tensioner was the only
> known cause of squeaks in a 300Tdi. Perish the thought!

Well, it wouldn't be any fun if it was that easy, would it?

So far I've got the left-hand-downabit squeak, the occasional squeak
from (I think) a door, and the irritating squeak from the plywood in
the back being screwed down too tight. Of course, if it isn't tight
enough, the ply rattles instead...

I'll probably rebuild the tensioner assembly at some point, but I
needed a quick sanity fix. This had hit the point of a squealing howl
on every journey, which was getting a bit much.

Peter

[email protected] (Peter) wrote in
news:[email protected]:

> I'll probably rebuild the tensioner assembly at some point,
> but I needed a quick sanity fix. This had hit the point of
> a squealing howl on every journey, which was getting a bit
> much.

Here's another possibility for you.

Opened up the bonnet of the 200Tdi the other day and some dog
biscuits dropped out of the sound proofing onto the engine.

Strange, I thought, as I gave it a bang. More dog biscuits....
then a mouse.

So maybe it wasn't the belt that was squeaking after all??

Derry

"Derry Argue" <derry(delete)@adviegundogs.co.uk> wrote in message
news:[email protected]...
> Here's another possibility for you.
>
> Opened up the bonnet of the 200Tdi the other day and some dog
> biscuits dropped out of the sound proofing onto the engine.
>
> Strange, I thought, as I gave it a bang. More dog biscuits....
> then a mouse.
>
> So maybe it wasn't the belt that was squeaking after all??

This is one of the more unusual stories I've heard on afl. It begs the
question, how did you get dog biscuits in your engine? I'm anxious to know.

"David French" <[email protected]> wrote in
news:[email protected]:

>
>> biscuits dropped out of the sound proofing onto the
>> engine.
>>
>> Strange, I thought, as I gave it a bang. More dog
>> biscuits.... then a mouse.
>>
>> So maybe it wasn't the belt that was squeaking after all??
>
> This is one of the more unusual stories I've heard on afl.
> It begs the question, how did you get dog biscuits in your
> engine? I'm anxious to know.
>
>
>

Mice are known horders. The 200Tdi was lying idle awaiting
repairs. The mice clearly took the biscuits "home" for the
winter. Now, I'll agree, it was some feat to remove the biscuits
to the sound proofing above the engine! But it did happen and I
wasn't too surprised. Mice seem rather fond of moving into
vehicles. The biscuits, by the way, are rather small -- about
1/2 inch in diameter and approximately 1/4 inch thick.

Derry

Derry Argue <derry(delete)@adviegundogs.co.uk> wrote in message news:<[email protected]>...

> Mice are known horders. The 200Tdi was lying idle awaiting
> repairs. The mice clearly took the biscuits "home" for the
> winter. Now, I'll agree, it was some feat to remove the biscuits
> to the sound proofing above the engine! But it did happen and I
> wasn't too surprised. Mice seem rather fond of moving into
> vehicles. The biscuits, by the way, are rather small -- about
> 1/2 inch in diameter and approximately 1/4 inch thick.

OK, I've checked for dog biscuits, mice and soundproofing - nope, none
of those present...

I once found that mice had carefully stashed a sizable amount of
poisoned grain in my bed (under the bottom sheet) whilst I'd been away
for a while. Returning the favour, perhaps?

Peter