Before installing our 5455 spring limiter tool, it is necessary to compress the variable valve timing spring. This 5454 tool compresses the spring, so that you can install the 5455 limiter tool then the 5457 or 5459 phaser limiter plug.
Cam phasers are specially designed, computer-controlled cam gears that automatically optimize camshaft timing based on the current engine rpm. Currently they are used in all 2005 and newer Ford Modular 3 Valve and all 2007 and newer GM L92 engines. Engine oil is pressure fed to the cam phasers through a series of passageways in the cylinder heads and camshafts. The engine computers control solenoids that adjust this oil flow into and out of the phaser's control chambers, giving the ability to retard the cams up to 60 crank degrees
- Physically Limit Maximum Cam Phasing
- Avoid Piston To Valve Clearance Issues
- Easily Adjustable
- Allocate Locking Over The OEM Phaser Range
- Allows Use Of Larger/More Aggressive Camshafts
