Greatly Reduce Oil Consumption ( '94 850 Non-Turbo )

hjself · Post by **hjself** » 17 Jul 2003, 14:22

My 1994 850 was using a large amount of engine lube oil. Upon examination, I found the front and rear camshaft seals leaking; I replaced them. This made a modest change for the good; however, the engine still used an unnecessarily large amount of oil. When I looked and thought more closely, I suspected that the Oil Separator was plugged and therefore allowing oil to flow to the intake of the engine via the flame trap. I replaced the Oil Separator after removing the old one and cleaning out the access ports to the engine. The change has been phenominal. Before this repair, I would generally have to add one quart of oil at each fill up. Yesterday, after the repair, I travelled 650 miles at Interstate Highway speeds and can barely tell that the oil level has dropped. It seems that my hunch was right. I recommend this to anyone whose 850 is using lots of oil. It has been a wonderful gift to me!

AutoX47 · Post by **AutoX47** » 17 Jul 2003, 21:53

where is this oil seperator and how much were the parts, what is required in install?

AutoX47 · Post by **AutoX47** » 17 Jul 2003, 21:53

and is it present on a 96 850 turbo?

hjself · Post by **hjself** » 18 Jul 2003, 08:31

Andrew, I have checked with my friends at Volov and am told that the Turbo Aspirated engines DO HAVE the Oil Separator ( AKA: Oil Trap ) and that it is located at the same place as on the normally aspirated engine - - That location is on the left front side of the engine ( passenger side front ) behind the Power Steering Pump; Alternator; and A/C Compressor and underneath and behind the Intake Manifold. The replacement requires the removal of the fuel rack and injectors ( recommend replacing all "O" rings on top and bottom of injectors ) and the intake manifold complete with EGR Valve, throttle body, etc. The Haynes Manual gives a good procedure for the task. ( this requires the replacement of the intake manifold gasket - - and I recommend that this opportunity be seized to remove, clean and re-install the EGR Valve ( and the associated sensor - no new gasket) WITH A NEW GASKET AS WELL ).
The parts needed are the Oil Separator; any deteriorated hoses or hose connections ( this requires the replacement of "crimp on" hose clamps the number and size of which varies according to the type of Oil Separator your engine has ( the number and location of exterior connection points varies according to engine number -- you will need to know the SN of your engine when you go to order the parts ). As for the cost of the parts, for my project, the total for parts was around $45.00 but that was for a different separator, etc. Good Luck.