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I got my 218 back from the rebuilder (complete rebuild) and reinstalled it in the truck about 4 weeks ago. Started right up and ran beautifully (Pertronix ignition, newly rebuilt carb, fuel pump, oil pump, new clutch, etc). I drove it through the dirt roads around our place and had put maybe 15 miles on it, all under 35 mph. Night before last I took it for a 2 mile drive (testing the brakes) and on the way back at a stop sign I felt a bump and then a loss of power and it felt like it was running on one cylinder. I limped it the 1/2 mile home. Oil pressure and temp were fine, oil was clean and coolant as well. Tonight I pulled the plugs - 1, 2 and 3 were wet with oil. I did a compression test (dry with all the plugs out): (6) 80 (5) 80 (4) 85 (3) 95 (2) 100 .... (1) 0 Im not sure how to diagnose the issue, but I assume that zero compression on a cylinder is bad news. Broken piston? Roland
