In this video I'll show how to reset a timing chain tensioner on an 07 Ford Edge 3.5L. The process is a simple one. First, the ratchetting mechanism has to be unlocked. This is achieved by pushing it forward as shown in the video. Once it is unlocked then the piston can be pushed back into the tensioner. A soft jaw vise or a c-clamp will assist in pushing the piston back in. Be sure if you are not using a soft jaw vise to protect the ends of the tensioner. You do not want to damage the surfaces. The same thing goes for the c-clamp. Once the piston is pushed in all the way lock it into places with a pin as shown in the video. Bolt the tensioner back up to the engine block. Release the piston by removing the pin. That's it!

Note: If the piston is pushed in to far you will not be able to lock it. You'll notice that the teeth of the ratchetting mechanism have to set into the ridges on the top of the piston. If the teeth cannot set into those ridges you will not be able to lock it into place because the leaver will not go back far enough to be locked into place. The goal is to get the piston as far in as possible and still be able to lock it.

DISCLAIMER
Barbour's Auto Help is not responsible for any damage or personal injury incurred in the process of performing any auto repairs done by you the viewer. Automotive repair is extremely dangerous. Repair your vehicle at your own risk. It is the viewers responsibility to verify all information and procedures as outlined in YOUR REPAIR MANUAL AND OWNERS MANUAL FOR YOUR VEHICLE. Owning and using a repair manual suited for your vehicle is essential for correctly and safely performing ANY repair to your vehicle. Always wear safety glasses and heed all instructions for use applicable to any piece of equipment you may use. Due to circumstances out of the control of Barbours Auto Help, Barbours Auto Help makes no guarantee that by the use of the information given in this video a quality repair will be made. Barbour'sAutoHelp makes no guarantee that the information provided is totally complete, syncronized and accurate. Verify everything using an appropriate repair manual.
USE THE INFORMATION FOUND IN THIS VIDEO AT YOUR OWN RISK! YOU CAN GET HURT. BE CAREFUL.

Wearing protective gloves is suggested.... Even though I'm not wearing them.