Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › thread lock Valve cover bolts › Reply To: thread lock Valve cover bolts June 28, 2023 at 11:29 am #1025271 Rahul JonesParticipant Honestly, I have never used threadlock on valve cover bolts. As long as they are torqued to spec, it shouldn’t come loose. Do you think someone else worked on it previously that they didn’t torque the bolts properly?