I have a 83 300 SD that has a swapped
617 engine in it. It has a turbo,but it doesn't have an egr mani. This "thing" as I now call it uses up to 4 qts of oil in 100 miles of travel. I now notice the rear of the car has an oil mist all over it. I also see oil coming from the tube that goes from the turbo to the oil pan & yes there is a new grommet. It looks like fresh oil , I guess I have a real oil burner? What can I do to find out what's going on?
Any help would be appreciated.

Could be bad turbo seals. How much blowby does it have? There was a recent thread with a similar topic. In that case it was a restricted PCV system causing oil to get pushed into the intake via the turbo.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

i would first power wash the engine and see where the oil comes back to isolate the external leaks first

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

I was thinking that too, how would I check that? I'm new at diesels,where is the pcv system?

PCV goes from the valve cover to the air cleaner. Black hose.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

There are no external leaks that I can see. The only one I see is where the tube from the turbo goes into the oil pan grommet. It looks Luke the oil might be being pushed out from the grommet. It definitely isn't dripping down onto the grommet. Is there pressure being built anywhere in the system? What I mean is would it be possible for oil to be pushed out from that grommet in the pan?

Here's another problem,seems the p.o.changed the engine the car is a 83 but doesn't have a egr valve. Looks like they took that pcv hose and spliced it into that U shaped hose under the air filter. There is a open hole in the top of the filter!
I checked blow by ....I took the oil cap off & it doesn't even move!

That motor is probably from a 79 or 80 116. They didn't have the EGR and the PCV hose went into the turbo u-tube.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Ok that's sounds good but the pcv hose has been spliced into the turbo U tube. It doesn't look factor for sure. Would you know what the proper air filter set up looks like? It seems the p.o. used a later air filter set up. It has a hole on the filter cover. Now about the excessive oil usage ?

If the Oil mist is coming out of the Tail Pipe this is an indication of a leaking seal on the Turbo Charger. Most likely on the Turbine side of the Turbon.
You will know if you Pull the Turbo off or the wrinkled Expansion Joint.
If it is leaking Oil the Carbon on that side will be wet looking instead of dry and powdered.

I guess your Engine is runing OK and not smoking; as you did not mention that.

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84 300D, 82 Volvo 244Gl Diesel

Well it does smoke alittle, esp at start up...but in comparison to other diesels I've seen it's normal. As I had mentioned earlier,I checked to see if this engine has blow-by. I did this by turning the oil cap off,but let it sit on the valve cover...it didn't move! I guess that's a good sign.

May I ask...is it difficult to pull the wrinkled expansion joint off? or will I have to remove the turbo completely? Will the exhaust have to be removed in that area? where exactly is this seal you mentioned..is it in the turbo itself? As you might have guessed..I don't know alot about these cars...

Thank you

Have you tried what the poster in the other thread with similar symptoms tried--disconnecting the PCV system and driving the car to see if the problem goes away?

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

If the pressure in the crankcase is being relieved elsewhere (because the PO left some other place open to the atmosphere) then the oil cap test isn't going to tell you anything useful. Even a good engine with little blow-by will have some pressure at the oil cap.

Kurt

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- '79 240D - engine swap complete! Engine broken in! 28-31 mpg! Lovin' the ride!
- '86 190D (W201-126) - 2.5 NA engine, 5 speed, cloth interior, manual climate controls, 33-34 mpg (sold to forum member).

I don't think so. There was a discussion on that topic on the thread I referenced. The one way valve is on the separator drain line.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

No,but I removed the hose from the splice at the U shaped hose under the filter and got another hose and connected it to the top of the air cleaner...it has the same results.....oil being put all over the back of the car. I'll try to run with it off as you suggest