i just got my WR back from the shop where they put a heli-coil in the oil drain hole from the case.(I had stripped the hole from overtightning). Now iv'e got the bolt to torque specs. and its got a small leak. It never leaked before so this must have something to do with the heli-coil.They used the same bolt with gasket and the heli-coil seems to be done correctly. Any suggestions on how to fix this. Thanks in advance.