Is it normal for oil to be around plugs and if not what causes this problem
I would recomend changing rocker gasket do not over tighten nuts very easy to sheer them off as they are only tiny and should onlybr done up tp about 5ft lb
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Is the oil on the outside of the engine around the plug wire or did you find the tip of the plug where the spark is emitted coated in oil? If the oil is on the outside, this is coming from a leaky valve cover that can be repaired by tightening up the screws a little at a time. Tighten one until it makes contact with the cylinder head and then tighten the one across the valve cover to the same tension. Move around until they are all tightened the same. Alternating the screws that are being tightened keeps you from warping the valve cover. If the oil is on the spark end of the plug and there is a lot, you may need to replace the piston rings on that cylinder.
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