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Originally Posted by resago
I plumbed the crank case vent back into the intake last night.
really helped with the oil blowby. appearantly, low or neg. crank case pressure is very important on these 200k+ engines!
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Check out this thread for vacuum diagrams:
http://www.peachparts.com/shopforum/showthread.php?t=105297
BTW, it looks like you have the vent connected directly to the air inlet without an oil separator, not a good plan because you will not recover any of your blow-by oil. Let us know how much oil your using. Also, you have very little vacuum in the intake of a diesel, your crankcase is running at about atmospheric pressure (as it should). You really need to lose that silly air filter and put the stock unit (with the oil separator) back on.
