These tensioners are a PITA. They are reverse threaded for some reason and soft as all hell. If you go past the throw they strip almost instantly. (This oughta make the purists shudder) I took mine apart, re-tapped the nut with a normal thread pattern and replaced the rod with a stock piece of threaded rod from the hardware store with an extra half inch on the end. (I ground the end that attaches to the cam with a bench grinder and drilled the correct size hole in it) Works perfectly.