RLause you are correct. I have a copy of the shop manual and it does cover the ACR. Should have looked at it before I posted. After going to the garage and double checking the movement of the exhaust valve, it seems that it is only moving when letting the exhaust escape. It does not seem to be moving before the firing of the spark plug. Will go down tomorrow and pull the oil pan. Bet I will find the spring in bottom of pan either broken or it has slipped off. Thanks to all and have a great day.
Bob
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