|
|
|
|
|
#1
03-21-2011, 09:03 PM
|
|||
|
|||
|
Cause of a "wet" Aircleaner?
Does anyone know why my OM617 82 300 SD would have oil pooling in the bottom of the aircleaner? Is oil vapor not condensing properly and draining back into engine? Engine has over 360,000 miles on it, last compression test yielded high figures as I recall (6 months ago) Just did valve stem seals and now am considering turbo rebuild just because - any thoughts?
|
|
#2
03-21-2011, 09:23 PM
|
||||
|
||||
|
I don't think the turbo has anything to do with it.
Excessive blowby may be an issue.
__________________
83 SD 84 CD
|
|
#3
03-21-2011, 09:32 PM
|
|||
|
|||
|
The "best" solution to this problem is sealing around the top of the oil separator, inside the air cleaner. Remove the air cleaner, bend the tabs back and clean thoroughly with brake cleaner, etc. to help the RTV adhere. Reassemble, seal and reinstall.
I did this on mine and significantly cut down on oil in the air cleaner area. Also, make sure you have good o-rings and seal at the drain for the oil separator, below the air cleaner.
__________________
Sam 84 300SD 350K+ miles ( Blue Belle )
|
|
#4
03-21-2011, 09:52 PM
|
||||
|
||||
|
I did not have a wet aircleaner, but some oil in the U-tube. Here is the DIY to seal up the separator. Should help you.
http://www.peachparts.com/shopforum/showthread.php?t=295627
__________________
Current Diesels: 1981 240D (73K) 1982 300CD (169k) 1985 190D (169k) 1991 350SD (116k) 1991 350SD (206k) 1991 300D (228k) 1996 Dodge Ram CTD (442k) 1996 Dodge Ram CTD (267k) Past Diesels: 1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)
|
|
#5
03-21-2011, 10:20 PM
|
|||
|
|||
|
Broken vacuum diaphram ?
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
|
|
#6
03-21-2011, 10:57 PM
|
|||
|
|||
|
Quote:
but if the diaphragm was broken, I would have many other issues related to clima, trans shift, shutdown, etc, yes?
|
|
#7
03-21-2011, 11:15 PM
|
|||
|
|||
|
Why don't you check to see if that line has oil in it... you have the car available to examine... I am just offering up guesses based on words on the screen...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
|
|
#8
03-21-2011, 11:22 PM
|
||||
|
||||
|
82 should not have a vent line from the VP. 80 I think was the last year with it...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
|
|
#9
03-21-2011, 11:26 PM
|
|||
|
|||
|
Quote:
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/showthread.php?t=156207&highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
|
|
#10
03-22-2011, 10:05 AM
|
||||
|
||||
|
Its almost certainly the oil sep.
__________________
http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
|
|
#11
05-20-2011, 07:27 PM
|
|||
|
|||
|
OK, still have the problem and what I do not understand (I resealed all connections) is how this could be given that oil blowby travels up and out valve cover through tubing and then is dropped down into oil seperator which then drains back into sump, correct? This is a very simple circuit, I have poured a little fresh oil down drain tube and it certainly drains . . . . . driving me nuts! To refresh memories -when I remove air cleaner from air cleaner housing I see quite a bit of pooled oil in the bottom of the housing (1982 300sd) Any other theories? Thanks!
|
|
#13
05-20-2011, 10:25 PM
|
||||
|
||||
|
If the Oil is coming from the Blowby this is what I did on a 300D to keep the Oil away from the Air Filter.
Washable Air Filter and Intake Mod , With Larger Breather http://www.peachparts.com/shopforum/showthread.php?t=280376 If it is the Turbo Charger Compressor side that is leaking you will have Oil every where inside of the Compressor Housing of the Turbo charger and also in the area of the Intake Manifold Closest to the Turbocharger outlet. Also Air Filter restrictions can cause Oil to be pulled out of the Turbocharger on the Compressor side (at lest it does that on Trucks); also if the Turbo Drain is restricted and causes the Oil is not draining out of the Turbo fast enough (I have also seen this happen on Trucks).
__________________
84 300D, 82 Volvo 244Gl Diesel
|
|
#14
05-21-2011, 02:16 AM
|
||||
|
||||
|
Answer
Quote:
It could be plugged (fail to drain) or stuck open by sludge = blow back from the crankcase. http://www.peachparts.com/shopforum/showpost.php?p=2027980&postcount=19 http://www.peachparts.com/shopforum/showpost.php?p=2027984&postcount=20 http://www.peachparts.com/shopforum/showpost.php?p=2027986&postcount=21 .
__________________
ASE Master Mechanic https://whunter.carrd.co/ Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 2003 Volvo V70 https://www.boldegoist.com/
|
|
#15
05-21-2011, 02:38 AM
|
||||
|
||||
|
I had the same problem when I purchased my '81 300SD about 8 months ago. I upgraded from the round plastic tube that goes from the valve cover to the oil separator to the flat one that has baffles in it. I also sealed the separator with RTV black. The results were good, and even though the RTV black wasn't able to hold for more than 6 months, it was easy to clean off and do the job again.
__________________
'81 300SD
|
 |
| Bookmarks |
|
|
Linear Mode
