Hi
first I would like to thank you for answering my question!
This engine in question came from overhaul as well the torquemeter, the value from backshop is 29540, and they said to put on cal A -2340 and on cal B- 27200. As I started to calibrate the indicator with the standard value (29850), like you mentioned before, when reading the indicator it showed -800lbs torque, while trying to get positive torque reading the only values I could put on the indicator was -2600 and 27200. the indicator wouldn t go under the -2600. Changed three indicators and all showed the same. the reading was 500 lbs and could not go any higher(needed to be 700lbs).
The point here is, I think the negative value for the cal A is out of standard as well the torquemeter, did the NTS check on air and did not get negative torque readings or lights on. Being talking with fleet management, and they say, all is normal according to OGMA, SA which is the back shop company.
So what do you think about these values?