Originally Posted by Furytom
I will do that today! Lets say it does smoke.
Were do I start fixing?
The wonderful thing about engines is they work in strange ways, what I'll isay s often true, but not always.
Oil smoke emitted on start up and coasting with a closed throttle is usually (but not always) the result of oil being pulled down the valve guides (usually, but not always the intakes). This happens when intake manifold vacuum is high and the stem to guide clearance excessive and/or the stem seals are shot. The latter is a high probability as these things are rubber that gets hard and cracks with age.
Oil smoke coming on acceleration is usually a sign that the rings are not sealing. Cause of this is wear, corrosion, breakage, or deposits from the oil and combustion products of the rings and/or cylinder walls and/or ring lands of the piston that prevents the rings from making a seal between the combustion chamber and crankcase. A bottom end rebuild would be called for. When this is really bad it smokes when ever running.
The assumption I'm making is that if you're looking for a missing quart every thousand miles, if it isn't going out the exhaust it's going on the ground. But since you haven't said anything about puddles of oil, I assuming it's going out the tail pipe.
The Positive Crankcase Ventilation can also be a problem, when engines get old, the valve sometimes fails. The oil separator, usually inside a valve cover, gets sludged up and just passes oil instead of vapors on to the PCV valve. This is easy to look at and cheap to just replace before you dig deeper. A compression test or better yet a leakdown test can give pretty good clues to the condition of the rings and also will tell you if the valves make a seal. This test puts compressed air into a cylinder (by cylinder) the escaping air tells you how much by measurement in time to loose pressure and where 'cause you can hear where it's leaking.