I asked in my post up above to mkirsch, but you may not have seen it yet. Do you know the history of the machine? Has there been any work done to the tractor lately? It's shapin' up like something is busted pretty badly or something isn't put back together correctly.
If you can see each valve stem moving when the rocker arm bears down on it, you should be finding some compression somewhere even with just a little oil per cylinder on the test. You could have one or two two valves stuck and not popping up completely, but if the motor was left to get stuck, it whould be two valves at most. At any given time in a four-cycle, four cylinder motor, there are only two valves open at any one time -- one for exhaust, one for intake. both valves on the other two cylinders are closed up on either combustion or compression. (the design of the cam make make that not QUITE true, but it's a good rule of thumb that the motor will stop in a position like a describe.
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Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
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