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No spark. TECHNICAL ISSUE 850

I had an oil leak on the top end (cam cover) and cam seals. so yesterday, I took it appart and replaced the front and rear cam seals, plugs O rings and resealed the top end. Let the sealer cure for a day then started the car today. NO SPARK!!! I get compression, I get what looks like a good timing according to the pinions marking, I get fuel, but I don't get a spark! none of the 5 plugs are sparking. I check the distributor cap and wires, I check the cam position sensor. They all seem fine and they were working fine two days ago. I have the engine block grounded, so what can be wrong. I don't want to start replacing the rotor or the coil since I don't see why it would just stop working. Is there another sensor besides the cam position sensor that would prevent spark if it's disconnected?
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! This car is driving (so to speak) me nuts...






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