You need to remember what is happening when the engine switches from V8 to V4 and back.
The VLOM puts oil pressure to the lifter to pressurize or extend the lifter so it engages the pushrod when the cam lifts the lifter. When the VLOM is told to shift to V4, it removes oil pressure to the lifters and and let’s them float while not moving the push rod. The problem with AFM is when the motor goes to shift back to V8 mode. If the pressurization of the lifter is off, the timing of getting the lifter extended by the time the cam lobe comes around is off and can damage the lifter. If your bolts on the VLOM are loose, that means you may have a less than optimal timing on pressurization if the gaskets between the solenoid and the block leak.
Guys put the AFM disablers in to keep the lifters pressurized all the time and reduce the risk of the timing being off when that switch happens and shelling out a lifter and the cam.
