smoke mk3 2.5d

[Djrobin]

i have a ford transit mk3 from 1989 with 52kw engine
i've changed the injectors but he still smoke a lot!
the oil level is also rising!
sorry for my englisch, i'm from belgium
thx

[gotgcoalman]

oil level rising

does the dipstick oil smell of diesel?
if so fuel is getting into the sump.
OR
does the dipstick look white/creamy when you check the oil?
If so water is getting into the sump.

what colour is the smoke and what does it smell like?

[Djrobin]

oil level rising

does the dipstick oil smell of diesel?
if so fuel is getting into the sump.
OR
does the dipstick look white/creamy when you check the oil?
If so water is getting into the sump.

what colour is the smoke and what does it smell like?

Yes, i think its diesel. Thats the reason why i changed the injectors.
Smoke is white/blue
Something wrong with the dieselpump?
I cant go faster than 95km/h...

[gotgcoalman]

new injectors?
at the best you have replaced a set of injectors with 1 dud
for another set with 1 dud (broken) one.

1 injector is dribbling rather than spraying fuel in to the cylinder.

[ceurieusneus]

Can you give us some more information?

Last change of oil?
Normal oil consumption for 1000km?
How diluted is the oil now?
How quick is it diluting?
How many km on the clock (if you know)?
How long doe you have this transit?
What do you know about his history?

Blue smoke comes (normally) from burnt oil
I would check up on (small) diesel lift pump
Greetings from Belgium

[gotgcoalman]

so........

it's a belt driven injector pump.(only connected to the engine via the belt and injector pipes)
this is ruled out as a leak wouldn't put diesel into the oil.

bad injectors?
1 way diesel can get into the oil/sump.
the only other part fuel related connected to the engine with an oil seal is the lift pump.

so.................

bad injector or lift pump is leaking back past the seal and into the sump.

both would cause bad performance/top speed.

[Djrobin]

Can you give us some more information?

Last change of oil?
Normal oil consumption for 1000km?
How diluted is the oil now?
How quick is it diluting?
How many km on the clock (if you know)?
How long doe you have this transit?
What do you know about his history?

Blue smoke comes (normally) from burnt oil
I would check up on (small) diesel lift pump
Greetings from Belgium

i just have this camper van
filters and oil change 1 week ago
120.000km
in 500km i think there is 2 liter of diesel in the oil
can i change the lift pump to a electrical version?
is it difficult to take of the pump?
thx

[ceurieusneus]

I think the lift pumps for a Transit 2.5DI are still sold, ask ford or google...
If you want to be sure, run the engine and soon after stopping remove the lift pump to check there is diesel on the part fitting in the engine.
An electrical pump, I would place only as a last option... As I would have to close the hole in the block where the pump used to sit.

To Coalman, sorry if I made you feel neglected...
Bad injectors always gave black smoke on "my" engines
If the transit had a "short" back axle, just as my ambulance 95km/hour is close to top speed.
That's why I asked if it was an ambulance.
If the van reaches it top speed, we could remove bad injectors off our list.
Normally, the lift pump has a drain hole, that has to be blocked or the leak is big and can overflow it.
So... Sorry if I made you feel uncomfortable with my different opinion
I think we are all here, only answering, because we want to help.

The oil diluted with 2 Liter diesel, thinning the oil, oil can reach the combustion chamber via piston rings and oil seals on the inlet valves...
Oil is burnt in the engine and gives the blue smoke.

[Djrobin]

I will check this evening the pump
Can the timing of the injector pump be not correct?


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[vanfox]

The oil diluted with 2 Liter diesel, thinning the oil, oil can reach the combustion chamber via piston rings and oil seals on the inlet valves...

Possibly leading to a runaway engine as the oil/fuel mix reaches the combustion chambers.
I'd dump the contaminated oil and filter after fixing the source of the contamination.

[ceurieusneus]

The oil diluted with 2 Liter diesel, thinning the oil, oil can reach the combustion chamber via piston rings and oil seals on the inlet valves...

Possibly leading to a runaway engine as the oil/fuel mix reaches the combustion chambers.
I'd dump the contaminated oil and filter after fixing the source of the contamination.

You are possible wright, lets hope for the best

"DJ Robin", that sounds quit young, we do not know how thick his wallet is.

Ones this diluting problem is cured, after the oil change we will know more...
As long as the bearings are OK an oil consuming engine can possibly still go on for a while...

[Djrobin]

I hope you can see but i think i dont have a small pump..
Other options?



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[ceurieusneus]

I did know for sure the banana engine has the lift pump...
Off coarse if your engine hasn't got a lift pump my complete theory falls apart
The only other way I know diesel can get in the sump is by the injectors and cilinders.
Back to Coalman

Next option
If you are sure the replacement injectors where OK it is probably time to check compression...
You could also cheque the valve clearances
If there is not sufficient compression in one cilinder there will be no diesel burnt.
The diesel mixture will leave the cilinder by the exhaust valve, some can pas the piston into the sump.

[ceurieusneus]

Just for a double cheque...
Took this picture of the lift pump on my Transit 2.5Di "banana" engine...

[Djrobin]

Just for a double cheque...
Took this picture of the lift pump on my Transit 2.5Di "banana" engine...

its not a banana engine, and the bosch pump can suck the diesel by himselfes i thought.
after the weekend i will check the timing belt and maybe do a compression test
the worst case for me is to demontage the cilinderhead and look 4 the valves and pistonrings...

its very interesting for me to know how everything (good) works
i've somebody has a complete good engine then i can do the swap en rebuild my smoking engine and still go traveling