your spark plug tube seal was installed incorrectly or is damaged
take your plug out and see if there is oil on the outside of it .spark plug seal huh? never heard of it causing issues.[/b]
I'm not talking about the seal at the top of the tube, I replaced the one at the base, right where the weep hole is at with the spark plug. I'm almost 100% positive thats your problem. You have to take the valve cover off and then take the tube off also to replace the seal.my valve cover is spotless.
its all running out of the weep hole on the cylinder itself, and down the front of the crankcase.
id know for sure if it was leakin from the valve cover, cause sand sticks to any and everything. no sand was/is on my valvecover..
could this be a crankcase pressure issue? breather not working properly?[/b]