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Blowby Problem on 240 200

I have a 1987 240 wagon with 223,000 original miles. Several months ago, I began to smell burning oil and actually have droplets blowing up on the tailgate when driving at highway speeds. I naturally assumed the flametrap was stopped up, so I cleaned it, along with the idle speed nipple in the intake. Yet I continued to have a very oil front crossmember, oil spots on the rear of the car, and a strong burning smell when I'd get out of the car after parking. I also had oil blowing out over the valve cover, coming from the cap. I replaced the gasket on the cap, but still have oil blow out there from time to time. Not long before this problem began, I'd changed the timing belt, and the seals around the cam, idler shaft and crank, but those are the seals where the oil is being forced out of the engine, and then running down on the front crossmember, the blowing back on the header pipe to smoke and stink. Depending on the type of driving, I'm going through a quart of oil every couple of hundred miles - not burning it internally but blowing it out. I've cleaned the flame trap and replaced it at several other times, and it's always partially clogged - maybe one-fourth to one-third of the holes in the trap. Perhaps I'm too close to this problem for the last several months to be able to step back from it and view it from a distance. I don't think I have compression coming by the engine rings because I have a pretty smooth idle, and until this point, never used even a quart of oil between 3,000 mile oil changes. Can anyone help me out on this, tell me how you solved a similar problem, or help me to see something I've missed. Many thanks.






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New Blowby Problem on 240 [200]
posted by  Craven  on Fri Oct 28 14:09 CST 2005 >


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