oil dripping on exhaust manifold. removed coil pack cover and noticed oil seeping (not much) from the valve cover. tried to torque the head bolts and found out that a couple of bolts had been stripped. this happened prior to me buying the car. on this 2.3 eng. there is a lot to do in order to install heli coils. would it work if i ran a bead of JB weld or gasket sealer around the entire area where the valve cover gasket is. any suggestions besides tearing the motor apart will be appreciated. thanks