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7.2 Absorber
The SuperFlow 902S absorber is a very robust and durable piece and rarely fails mechanically. If your
servo valves check out good mechanically and electrically, then the next step is to have a look at your
absorber. With the engine disconnected from the absorber driveshaft, grasp the driveshaft and try to rotate
it by hand. You should be able to rotate the shaft and the absorber impeller relatively easily. If not, then you
may have seized a bearing or have other damage inside the absorber.
Another potential problem is servo valves not being securely mounted to the absorber inlet or outlet. We
have seen the mounting bolts come loose or even break. This can usually be ascertained via a visual
inspection of the valves on the absorber. If you do remove them, use blue thread locker on the mounting
bolt threads when you reinstall them. We have also seen the belts come loose.
Figure 7.6 Servo Inlet Valve
Figure 7.7 Servo Outlet Valve
7.0 Troubleshooting
