Started my 1949 1/2 ton with a 216 cu.in engine after sitting for about two years. Sprayed MMO in the spark plug holes before letting it sit. Turned the engine by hand before starting and it turned easily. Started it up, set the timing at a total of 8 degrees, set the carburetor mixture screw at 3/4 turn from stop and set the idle a 475 RPM with tachometer. I have 21 hg vacuum at idle off the intake port and the needle is steady. Compression #1 105, #2 108, #3 102 #4 105, #5 107, #6 95. Valves have been adjusted as specified by the FSM. Noticed I have blue smoke from the tailpipe at start-up and when I let off the throttle from about 2000 rpm. Flushed cooling system. New hoses new 4lb.radiator cap and new thermostat. Temperature stays at 180-185 idling in place for over 20 minutes. The engine did not smoke before I let it sit. Thinking I may need to replace the valve seals? Umbrella seals or "O" ring seals? Any ideas as to why I now have blue smoke from the tail pipe?
Tim
