Smokey 90

The exhaust smoke from my 1989 90 2.5 DT is quite disturbing. Once warmed up
and driven, all is ok (after 10 mins or so), but it only needs to sit for 20
mins, and on start up its smokey as hell again?
Had new oil, fuel and K&N air filters.
The git who owned it before me was running it on kerosene. I have a new
tank on there now, have with the new filters and several 'fill-ups' of
normal legal deisel, I would have thought all traces of this would have
gone, or would there be damage to something which is causing the smokey
startups?

TIA, Angus

On Fri, 30 Dec 2005 17:03:15 -0000, "Fentoozler" <nospam@mapson>
scribbled the following nonsense:

>The exhaust smoke from my 1989 90 2.5 DT is quite disturbing. Once warmed up
>and driven, all is ok (after 10 mins or so), but it only needs to sit for 20
>mins, and on start up its smokey as hell again?
>Had new oil, fuel and K&N air filters.
>The git who owned it before me was running it on kerosene. I have a new
>tank on there now, have with the new filters and several 'fill-ups' of
>normal legal deisel, I would have thought all traces of this would have
>gone, or would there be damage to something which is causing the smokey
>startups?
>
>TIA, Angus
>

helps if we know what colour the smoke is.

General rule of thumb is:

blue = oil = bad, could rings, valves or head gasket gone between
piston and oilway, check for crankcase compression.

black = unburnt fuel = not so bad

white (at startup on a diesel from cold) = unburnt fuel, generally
occurs on really old diesels on colder days

white (whilst running, and lots of it, with overheating) = head gasket
failure, generally involving a breach of a coolant pathway and piston
= bad
--

Simon Isaacs

Peterborough 4x4 Club Newsletter Editor and Webmaster
Green Lane Association (GLASS) Financial Director
101 Ambi, undergoing camper conversion www.simoni.co.uk
1976 S3 LWT, Fully restored, ready for sale! Make me an offer!
Suzuki SJ410 (Wife'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
1994 200 TDi Discovery body sheel, being bobbed and modded.....

"Simon Isaacs" <[email protected]> wrote in message
news:[email protected]...
> On Fri, 30 Dec 2005 17:03:15 -0000, "Fentoozler" <nospam@mapson>
> scribbled the following nonsense:
>
>>The exhaust smoke from my 1989 90 2.5 DT is quite disturbing. Once warmed
>>up
>>and driven, all is ok (after 10 mins or so), but it only needs to sit for
>>20
>>mins, and on start up its smokey as hell again?
>>Had new oil, fuel and K&N air filters.
>>The git who owned it before me was running it on kerosene. I have a new
>>tank on there now, have with the new filters and several 'fill-ups' of
>>normal legal deisel, I would have thought all traces of this would have
>>gone, or would there be damage to something which is causing the smokey
>>startups?
>>
>>TIA, Angus
>>
>
> helps if we know what colour the smoke is.
>
> General rule of thumb is:
>
> blue = oil = bad, could rings, valves or head gasket gone between
> piston and oilway, check for crankcase compression.
>
> black = unburnt fuel = not so bad
>
> white (at startup on a diesel from cold) = unburnt fuel, generally
> occurs on really old diesels on colder days
>
> white (whilst running, and lots of it, with overheating) = head gasket
> failure, generally involving a breach of a coolant pathway and piston
> = bad
> --
>
> Simon Isaacs
>
> Peterborough 4x4 Club Newsletter Editor and Webmaster
> Green Lane Association (GLASS) Financial Director
> 101 Ambi, undergoing camper conversion www.simoni.co.uk
> 1976 S3 LWT, Fully restored, ready for sale! Make me an offer!
> Suzuki SJ410 (Wife'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
> 1994 200 TDi Discovery body sheel, being bobbed and modded.....

Its grey / dark grey in colour, definately not blue. It passed its MOT
emmissions test ok, and, like I said, seems to clear up ofter a few miles.
I don't use the vehicle much, once or twice a month.

Angus

kerosene wouldnt cause the smoking , in fact it would make less smoke
than with diesel , but to be honest kerosene and white diesel are
almost same viscosity nowadays .

however he should have added a lubricant to the kerosene , ie 3 litres
veg oil per tank full , in order to keep injector pump lubricated
properly .

you cant just run on neat kerosene because it has not got enough
lubrication in it to lube the pump properly , hence youd need to add
veg oil or 2 stroke oil to it .

i would suspect youre smoking comes from the oil seals in the turbo
leaking oil past them .

are you using much engine oil at all, in reality youd only need to top
up a good engine once a month and then it might only need a small
amount of oil if any .

if you are affected at startup then this could be the turbo oil seals ,
but could also be the valve stem seals passing oil into the ports and
combustion chambers when you switch off engine as well .

the 19J engine is prone to allsorts of problems and especially turbo
related and piston related .

they usually blow headgaskets and crack pistons .

you might have an injector pump problem but if its passed the
emmissions test then the pump should be ok .
i would suggest the turbo area is the problem as that wouldnt show up
on a warm engine so much , ie emmissions test .

if you had a bad injector pump or rings or head gasket problem then
this would pretty much show up all the time whilst its running , a head
gasket blown would probably make you lose youre cooling fluid .

the oil you are seeing is deposited from the turbo either into inlet
side or into exhaust pipe after you switch engine off , then when you
fire it up again you have to pass the oil thru the engine or burn it
off in the exhaust, hence the smoke for a bit .

you will see a puff of smoke out the exhaust when you startup , thats
normal and in winter youll get condensation on damp and cold days when
starting from cold .

..

Fentoozler wrote:

> Its grey / dark grey in colour, definately not blue. It passed its MOT
> emmissions test ok, and, like I said, seems to clear up ofter a few miles.
> I don't use the vehicle much, once or twice a month.

Check the injector pump timing for starters.


--
EMB

In message <[email protected]>
"Fentoozler" <nospam@mapson> wrote:

> "Simon Isaacs" <[email protected]> wrote in message
> news:[email protected]...
> > On Fri, 30 Dec 2005 17:03:15 -0000, "Fentoozler" <nospam@mapson>
> > scribbled the following nonsense:
> >
> >>The exhaust smoke from my 1989 90 2.5 DT is quite disturbing. Once warmed
> >>up
> >>and driven, all is ok (after 10 mins or so), but it only needs to sit for
> >>20
> >>mins, and on start up its smokey as hell again?
> >>Had new oil, fuel and K&N air filters.
> >>The git who owned it before me was running it on kerosene. I have a new
> >>tank on there now, have with the new filters and several 'fill-ups' of
> >>normal legal deisel, I would have thought all traces of this would have
> >>gone, or would there be damage to something which is causing the smokey
> >>startups?
> >>
> >>TIA, Angus
> >>
> >
> > helps if we know what colour the smoke is.
> >
> > General rule of thumb is:
> >
> > blue = oil = bad, could rings, valves or head gasket gone between
> > piston and oilway, check for crankcase compression.
> >
> > black = unburnt fuel = not so bad
> >
> > white (at startup on a diesel from cold) = unburnt fuel, generally
> > occurs on really old diesels on colder days
> >
> > white (whilst running, and lots of it, with overheating) = head gasket
> > failure, generally involving a breach of a coolant pathway and piston
> > = bad
> > --
> >
> > Simon Isaacs
> >
> > Peterborough 4x4 Club Newsletter Editor and Webmaster
> > Green Lane Association (GLASS) Financial Director
> > 101 Ambi, undergoing camper conversion www.simoni.co.uk
> > 1976 S3 LWT, Fully restored, ready for sale! Make me an offer!
> > Suzuki SJ410 (Wife'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
> > 1994 200 TDi Discovery body sheel, being bobbed and modded.....
>
> Its grey / dark grey in colour, definately not blue. It passed its MOT
> emmissions test ok, and, like I said, seems to clear up ofter a few miles.
> I don't use the vehicle much, once or twice a month.
>

Exhaust valve guide seals?

> Angus
>
>

Richard

--
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beamendsltd wrote:

> Exhaust valve guide seals?
>
> Richard

Smoking on the over-run (even when warm) would provide confirmation.