white smoke

[phibbzy]

Wondering if anyone might be able to shed some light on this white smoke.

https://www.youtube.com/watch?v=_GNBhuSj_hU

300tdi, vid is cold start.

So far:


replaced injectors with good spares, new copper washers.
moved timing from retarded to spot on to advanced and to more advanced.
replaced fuel return pipes on injectors
checked all unions for leaks, none there...



Could it be residual engine oil in the exhaust from the turbo leaking engine oil out the exhaust turbine?

[justinc]

Does it smell like coolant or look like steam??? :(

JC

[Vern]

Burning water:(

[phibbzy]

Does it smell like coolant or look like steam??? :(

JC

Negative, smells like diesel/oil & confusing me between the two. No coolant smell to it and it does not dissipate like moisture would and the smoke particulates seem to hang and move off with the wind.

I have an oil leak from the turbo, dumping engine oil into the exhaust so I am very much hoping its that but I have no idea if its possible for it to smoke that much just from oil...

[PAT303]

White smoke means incomplete combustion,it's a cold start so that could be it,does it do it for long or when hot?. Pat

[Vern]

Missed the leaky Turbo bit. When I had the Irishman here, he had the same problem, it was blowing grey smoke, ended up being the Turbo. Had to remove all the intake/inter cooler system and clean all the oil out. Then fix the turbo:(

[Dungie]

Looks like incomplete combustion on one cylinder to me. Unburnt fuel = white smoke. have you checked the valve clearances? Hopefully its as simple as that and not a valve/ seat or ring problem.

[phibbzy]

White smoke means incomplete combustion,it's a cold start so that could be it,does it do it for long or when hot?. Pat

It has 4 new glow plugs in it as well.

previous to the turbo/oil issue it would do it for about a KM.

[Dungie]

Looks like incomplete combustion on one cylinder to me. Unburnt fuel = white smoke. have you checked the valve clearances? Hopefully its as simple as that and not a valve/ seat or ring problem.

[phibbzy]

Looks like incomplete combustion on one cylinder to me. Unburnt fuel = white smoke. have you checked the valve clearances? Hopefully its as simple as that and not a valve/ seat or ring problem.

The head is only 25000km old (AMC brand) so shouldn't be a seating issue.

I checked the clearances cold after I had the rocker gear out checking the valves/stems. The engine was cold by the time I got to checking the clearances but they were all ~1 thou tight.

Rings aren't out of the question in my mind so a compression check is in order...

[phibbzy]

Missed the leaky Turbo bit. When I had the Irishman here, he had the same problem, it was blowing grey smoke, ended up being the Turbo. Had to remove all the intake/inter cooler system and clean all the oil out. Then fix the turbo:(

Ah good yep, I am hoping its just a dodgy turbo but would figure oil burning in the exhaust would be blue and not white/grey... it certainly smells like diesel as well, not definitely oil.

[Disco Muppet]

Seems to have a more bluish tinge to me than other videos I've seen of white smoke but it's all academic on my part :)

[wrinklearthur]

Wind your injector pump back a bit, then reduce the boost to standard and try again.

There is excessive fuel is being delivered before the turbo had a chance to be spooled up.

The Guys with the Nissan's can wait. :wasntme:

.

[110 Pete]

I had a similar smoke situation with my 300tdi. Turbo failed and oil passing through the turbo made this same coloured smoke, oil which has hit a hot surface like the turbine housing will cause a white smoke unlike when oil is carried in smaller particles through the exhaust gas and comes out blue. Try a good 2nd hand turbo and see if that sorts out the issue. You should be able to pick a turbo/ manifold for 300.

Cheers

Pete

[phibbzy]

I had a similar smoke situation with my 300tdi. Turbo failed and oil passing through the turbo made this same coloured smoke, oil which has hit a hot surface like the turbine housing will cause a white smoke unlike when oil is carried in smaller particles through the exhaust gas and comes out blue. Try a good 2nd hand turbo and see if that sorts out the issue. You should be able to pick a turbo/ manifold for 300.

Cheers

Pete

Good info, just what I was looking for. Cheers.

[wrinklearthur]

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https://www.aulro.com/afvb/images/imported/2014/10/924.jpg
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[phibbzy]

Tell you what... I am as happy as a pig in the proverbial :D

I removed the top Banjo bolt and hung it off, still attached to the turbo. Then using the old line with converters to 1/4 line attached the air compressor and bolted it up to the top of the turbo.

With the oil cap off and the cyclonic cleaner undone at the intake I pumped 120PSI through it for a few seconds and it came out of the oil cap... so up through the oil gallaries?

I closed of the oil cap and did it again, this time it came out of the cyclonic cleaner as expected - all good. I blocked that off and moved to step 3...

With both pressure outlets plugged leaving only the oil delivery line hanging off the block as the only release, I repeated the air compressor... nothing...

3 good supplies of air later (and a careless disregard for any and all seals in the engine :D) the oil feed line exploded into a geyser of engine oil!

Whacked it all back together, checked over the engine and degreased, checked again at idle then did a quick run down the street.

No smoke !!!!

A 20 minute run on the highway getting the EGT's up to 550 and the exhaust is now free of oil residue and a healthy grey/black color :)

Tomorrow will be an oil flush and filter change......................