Remove a spark plug and check for spark when cranking.
If this is a 250S, not SE, it has two zenith carburetors. Toward the
front and just under hood is fuel inlet to carbs coming from mechanical
fuel pump beside dipstick for oil. The hose runs along the front of the
valve-cover where the cam sprocket is.
Loosen the connection and observe whether fuel emerges, when cranking.
Use a rag, and disconnect the coil wire; take all precautions
regarding gasoline under pressure.
Open the Oil-filler cap and observe the camshaft turning.
Chances are, you will have no fire, no fuel or no cam-action. Then
This car also has breaker-points, which could be bad.
Is there water in the oil? My 250S suffered a cracked head.
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