IF the other cyl have stuck intake valves, they will blow back into the intake and stop the one cyl from getting fuel in many cases.
The cyl with zero compression, may simply have a valve stuck open, and the other low cyls could be leaky valves..
I would work the head over first and get all the valves loose, operating correctly and even lap the surfaces to knock off any rust so they seat correctly...
But I would also think hard about pulling the pan if it can be done with out splitting, and pop out the pistons, clean the ring lands and re-ring it... and new rod bearings.
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Today's Featured Article - Identifying Your Tractor - by Staff. Maybe you bought it from a friend who didn't know what kind of tractor it was, or perhaps (and this is every tractor fanatics dream) you stumbled across it in an abandoned field covered with weeds but intact. In any case, you have no idea what the make and/or model is. For awhile perhaps it doesn't really matter. Especially if it runs! But pretty soon you'll probably need to tinker with it a bit and maybe buy a part or too. Having a manual is nice. But how does one go about dete
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