I had similar happen, I suspected assembly lubes cause some sort of stiction in the valve, I did a light alcohol, 12 drops ish, flush and it cleared it up.
Quote from: Back_Roads on January 19, 2023, 09:53:28 AM I had similar happen, I suspected assembly lubes cause some sort of stiction in the valve, I did a light alcohol, 12 drops ish, flush and it cleared it up.Stiction, first time I heard that word was looking over a turbine engine ng graph with a w4. I was going to say may need to polish the vb side of the tube.
Quote from: pblawler on January 19, 2023, 11:17:12 AMQuote from: Back_Roads on January 19, 2023, 09:53:28 AM I had similar happen, I suspected assembly lubes cause some sort of stiction in the valve, I did a light alcohol, 12 drops ish, flush and it cleared it up.Stiction, first time I heard that word was looking over a turbine engine ng graph with a w4. I was going to say may need to polish the vb side of the tube. I never heard it till airgunners were experimenting with balanced valves.