| Rebuilding your engine means doing the job right. Without the right tools, the best work in the world is useless. Don't scrimp on the tools when you're saving money by doing the process yourself. The Cam Shaft Socket, Cam Bar, and 46mm Crows Foot Wrench are absolute essentials when assembling or tearing apart your 911 engine. The cam shaft nut that secures the timing requires almost 200 ft-lbs of torque, two people, and the right tools to remove. Attempting to remove this nut without the proper tools can result in damage to your engine! The spring clips are used to secure the cam followers (tappets) inside the case while you are assembling it. Very often, these will fall out as you rotate and move the case around. Protect them from damage by installing these retaining clips. The chain sprocket holder is a much more secure method of retaining the chain when you perform a tensioner replacement. Designed to prevent the chain from slipping off the cam shaft sprocket, this tool can be an invaluable life saver. Also used during the upgrade process is the chain tensioner tool, which holds the chain tensioners in their compressed position so that they may be easily installed in the engine. | 
