Pump Voltages/ Fuel System Restrictions
Got a question regarding pump voltages and fuel system restrictions. I know it's a good idea to monitor pump voltages so that if you see an increase it may be the sign of an issue. I'm wondering how much of an increase would cause concern? For example I know my Merlin 140 has a normal pump voltage of ~.5v at idle, and ~4.0v at full. With these numbers in mind would a 0.1v increase be an indication, or would it be more dramatic like 1.0v? TIA!