I have a 93 non-turbo 850 and I am trying to track down a oil leak.

Been through flame trap all that and am starting to think it might be in the oil trap. Problem is in comparing to a 94 850 I have the large hose from the flame trap going under the intake manifold. But there is no hose coimg up through the intake manifold and connecting to the cylinder head just to the left of the oil fill cap like in the 94 and up models have. There isn't even a notch in the cylinder head for the hose (looking right next to oil fill hole neck)

Is this another difference in the 93 model year? Assuming the hose from the flame trap goes the the oil trap, where does the other hose connect?

Don't look forward to removing the intake manifold but it looks like that is where the oil is mostly coming from and before I try to get into there really need some info on what I should be looking for.

Thanks

Tom

Tom,
Yes the '93's were much different. I know that most have an EGR system. Might be worth investigating this too. However, the oil trap or separator is different too. More of a triangular shaped box that sits under the intake manifold without the tube running to the top of the engine. I've seen diagrams of a square hole in the fuel rail that is used to enter under the intake manifold (or rather between the intake cylinders) with a long clothes hanger like devise to fit a new hose on the top of the oil separator to the flame trap (the the flametrap has a smaller hose running off of it to the vaccum tree). Evidently there was a a service bulletin on the crankcase ventilation hose (replacing it with a new type) from the flame trap (Service Campaign #59B) using a press tool that looks like a coat hanger (part#999 5549-4) that was inserted through the square opening to insall the new hose. Therefore there is apparently no need to take the intake manifold off unless changing out the oil separator. Instead of venting to the top of the engine the older oil separator vented sideways into the side of the engine with short hose(s). It may be worth asking your dealer's service department about your specific car's vent. system, or maybe someone here knows more than I do. I have added a diagram of this in the photo section here for you: http://www.brickboard.com/GALLERY/index.htm?uid=5490&pix_type=&js_link=&sort=&model=
HOpe this helps. MIJ
--
1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon. My cars have been running so well lately they've got me worried.