Vibrations problems…nearly solved.
A few weeks ago, my SR22 developed a vibration. Working with Cirrus and TCM, we determined it was likely the engine driven fuel pump. It took TCM a week to get us a new one, but it seems to have solved most of the problem. In addition, I had always had to keep the boost pump on when taxing to prevent the engine from cutting off. I also had to keep the engine RPM up above 800 after landing, with the boost pump on after landing. The new pump and set-up by Miller Aviation in Hollywood (HWO) fixed that problem also. No more boost required on the ground and the engine was set up to idle at 750RPM.
One thing I noticed right off was the new pump is very quiet compared to the old one(38 hours). In fact, when I turned it on for the first time, I thought it was not working. I had to take off my headset to hear it. IÂ’m not sure what this means, but you may want to think about this if you have had the same problem.
I do have some vibration left, but we think that could be the prop. I going to have it dynamically balanced and will let you know what happens.
Cirrus has been very responsive regarding this problem, but TCM was slow getting it together. I called the president of TCM, but he was out of town. I related my problem to his secretary, and she was VERY helpful. Go to the top if you have a problem with TCM. DonÂ’t screw around.
Denis SR22,#26 and 40 hours. GREAT AIRPLANE!!!