I have 1994 S350 turbodiesel this just happened I start the car and blue smoke came out of the tail pipe it smell like burning oil, drove several blocks and the smoke continuous to pore out the tail pipe I got in to the freeway and for the next 35 miles no smoke at all, run perfectly at 60/70, I checked under the hood disconnected the turbo intake hose and there is some oil in front of the impeller, check the coolant reservoir and their is oil floating on top in edition there is oil evidence oozing out from manifold gasket at the #1 cylinder head connection, and the last thing I check was oil consumption and yes it burnt one quart=35 miles, no coolant in the oil pan What am I looking at? Thanks

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

If it is Engine Oil in the Coolant that is evidence of a Head Gasket issue. Or, If you have one of those Engines that has an Oil Cooler connected to the Coolant it could be the Oil Cooler is leaking.

If it had just been the Blue Smoke issue happening suddenly I would have suspected the Turbo Charger. But, Look for the Oil leak on the Exhaust Side.

The Carbon on the Exhaust side should be dry. If it looks shiny and tar like Oil is getting into the exhaust Turbine area and trying to burn there.
To determine if it is the Oil is coming from the Engine or the Turbine Seal you need to look into the Exhaust Manifold.

Since the Crankcase Breather brings some Oil into the Intake some Oil is normal. But, the Seal on the Compressor end of the Turbo can also leak.
There is some end play on the Turbo Charger Shaft but when you move it in and out it should not be much.

If everthing is sealed off I don't see how Oil could come out of the Manifold Gasket.

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84 300D, 82 Volvo 244Gl Diesel

thanks diesel911, I will take some evidence pictures tomorrow Saturday.

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

If you remove the crossover pipe and start it, you can peer down toward the turbo outlet and see if any oil is pooling there. If not, then the head gasket is reasonably confirmed as the culprit.

I'm assuming it didn't catastrophically fail a piston or something on the lower end..........highly unlikely.

I did repair the turbo 4 months ago and I am suspicious I am checking the turbo tomorrow but any justification as to how the oil got in the cooling system?

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

You could be having more than one problem.
Is is Engine Oil in the Coolant or ATF?

I looked up your other thread except for the Oil in the coolant are the Symptoms the Same as in the thread below or is there differences.
http://www.peachparts.com/shopforum/diesel-discussion/307614-rough-start-white-blue-black-oil-smelly-smoke.html

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84 300D, 82 Volvo 244Gl Diesel

or ATF?
what you mean?

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

Yes it acts the same but now their is oil in the cooling system.
Tomorrow I will to an inspection again with all the info I got and post.

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

If oil is leaking out the #1 exhaust manifold runner and timing chain tensioner area, the head gasket is shot, regardless of other symptoms. Dust off that XZN bit and get to it.

Sixto
87 300D

With oil in the cooling system, the head gasket must be the culprit.

There's some work in your future, unfortunately. With that engine, I would not wait very long.

To confirm it's not the intake sucking oil through a bad turbo seal, remove the crossover pipe and run it to see if the smoke subsides after running it for a few minutes.

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1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI

Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D

The oil passage to the head is just forward of the number one cylinder. It is noted to fail in the gasket area. A look or comparison of the first cylinders glow plugs or injectors appearance with others should verify it. At least it is not the bent rod symptom.

Or crank the engine over wth the number one injector out. If oil is sprayed out is pretty conclusive as well.

When the head is off critically measure the deck height of all pistons to make sure that no rods have started to bend. A little difficult with the timing chain so you might want to pass by that step. Symptomatically they do not sound like a current issue either at all..

.If you want to keep the car long term. At your leisure keep your eyes out for the earlier 3 litre block. It does not develop the bent rod symptoms. Just put it in proper storage so if the need ever arises you have one.Much cheaper to do it this way.Also may help to include a good 603 engine with the car if you ever decide to sell it. All the 3.5 stuff bolts onto it. There are no sensible repairs practical for the bent rod symptoms on the 3.5 if they ever occur.

Thank you all, you restore my confidence in my baby.

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

This is what I see so far.

The question is does this engine have 60 more miles to the shop or I have to like "sixto" say dust off that XZN bit and get to it.

After all how hard can it be to replace the gasket?

Attached Thumbnails

     

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1994 ~ S420


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1998 Monaco Dynasty 40'
1994 S420, 1999 Ford ClubWagen

The tensioner and thermostat are surprisingly clean but I don't think I've seen an exhaust manifold runner bleed oil quite like that.

Aside from the possibility that it might not run another 60 miles, if the head gasket lets go completely, you might do irreparable damage if it hydrolocks at high rpm or coolant gets to the lower end bearings.

Sixto
87 300D