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smoky 144 140-160

posted by  Phil S. on  Wed Feb 19 12:14 CST 2003
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last visit: Fri Oct 24 13:18 CST 2014
[RELATED]

There's a bunch of wadded up wire mesh (the flame trap) in the top of the teardrop-shaped thingy (the oil trap). You'll see it if you pull the hose off, and you can pull it out with needle-nose pliers. It's one of those 50-cent parts that's supposed to be replaced every year and rarely is. If it's blocked with gunk, you'll build crankcase pressure.

However, I suspect you have problems beyond that. 20% leakage in two cyls might cause some pressure if it was leaking through the rings, but not heavy smoke. I suspect your head gasket is a goner and oil is leaking into the cyls directly.

In that case, your leakdown test by itself would be pressurizing the crankcase -- not sure if you'd be able to hear where the air is going or not... might well be time to pull the head and have a look.






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