I just figured I'd throw this out there. For all of you that have the engine ticking, how many of you have consistantly run high octane (91 or higher) in your trucks?
valve lash. if these heads are anything like the head on my MR2, they use a solid shim follower. there HAS to be some gap to allow for expansion due to heat. if there isn't any space between the cam and the follower, your valve won't seat fully and you'll burn exhaust valves and lose compression.Turtleboy said:I talked to the head toyota mechanic the other day and he said something about the lifters having a gap somewhere that causes the sound.