Cosworth Dual AVCS Timing Belt Tool
Manufacturer Part # 20029444
Installing a timing belt on the horizontally opposed engine of Subaru EJ257 can be a challenge. We engineered this Timing Belt Tool to aid in the ease of installation as well as prevent potential engine damage. Turning the cams into the wrong position creates a valve-to-valve contact. Over time the damaged valves become fatigued and repeating this process causes the valve to break into pieces, falling into the combustion chamber. The smallest broken piece may create severe damage.
Our Subaru Dual AVCS Timing Belt Tools enables the engine builder to correctly time the cam sprockets by locking them into position. Locking the sprockets into place eliminates the possibility of forcing the cam over the nose which can cause damage to the pistons and the oversized valves. During the timing belt installation process, the use of the tool is only necessary on one side. The other side of the engine is not at risk of interference without the use of the tool.
The uniquely designed Cosworth Subaru Dual AVCS Timing Belt Tool has a small window in the body to provide optimal efficiency. Allowing the engine builder to align the timing with the factory marks, arrows are machined into the tool's body. Following the factory service instruction manual, the arrows allow the engine builder to know the direction to turn the sprocket for correct alignment.
For a secure fit, the steel hubs are splined for the cam sprockets and can be locked in placeusing high quality, stainless steel, 12.9 metric socket head screw cap. Fitting on an 8mm Allen tool, the socket can be easier tightened to lock the cam sprockets into place for optimal results. Saving time and money, the specialized timing belt SB Dual AVS Timing Belt Tool can eliminate the possibility of valve breakage.