Hi Harry,

Your method for dealing with the problem is exactly what I'd have recommended. Close the ball valve and give it a shot with the pack, open the ball valve and try another start, easy... Is this a flightworks pump or another brand? Regardless of brand, sometimes a chunk of debris can bind on one of the gear faces and produce this problem. I most often see it in cooler temps and after period where the engine hasn't run for a few months.

As and FYI... In a previous thread I misquoted the minimum start temp as 100C. Its actually 110C, and I'd forgotten to mention I tuned mine lower to help with the colder climate. If you'd like that adjustment made for you, you need to make contact with a PST rep (with a "factory" data terminal) Users do not have the ability to tune this parameter.

Kelly