johnb1

I also have had my fuel sender issues resolved. After dozens of hours at Modern Aero at Flying Cloud Airport we found the problem with the right tank fuel reading wrong. As you all recall from a previous post i would top off and the right tank would continue to show full and sometime late in a flight the gauge would begin to move to empty. After the third time we got the problem to stay a problem and the with the use of a bore scope they looked into the tank and saw the sender stuck in the up position. It was never the sender is was always the float catching on one of the screws that secure one of the plates on the top of the wing. We tweaked the sender arm 1/4 away from that snag and all is perfect. Just another way to chase an intermittent problem. Glad it's fixed and glad to share my experience. FYI- Mooney Warranty was unwavering and stayed with me till the end. Thanks Mooney, Your the Best. John N782JB

Well i finally have the information and resolution on my TKS reading accurately. We sent the sending unit from the tank and the head unit directly to TKS. They had problems getting it to read properly and with out explanation they sent it back working correctly and no charge. I did learn one thing, each tks system should have an addendum in the POH and a graph that shows how much actual fluid is in the tank vs what is reading on the head unit. They explained that the way the tank is shaped it is impossible to measure it accurately for full to empty. Most of the way down the graph you have slightly more fluid than the readout. I guess it is a safety factor. Regards John N782JB

I should have the data this week John

Scott, lots going on. We sent the tks sending unit and the control unit back to tks for calabration and will get it back tomorrow forinstall. we are all anxious to see how it works in the airplane. We also found the fuel problem to be the R out board sending unit hanging up in the full position on on of the nutplates on one of the upper tank access plates. the only fix is to tweak the sending unit arm latteraly 1/4 inch. We also have a problem with irratic manifold pressure after the engine is warm. We plan to run a mechanical MP gauge into the cockpit and do some test flights and take offs and send the data TDC for advice on what to change or adjust. More on that later. back to the tks. After talking to the engineers at CAV Aerspace they are not able to accurately display the fluid level on their tks tanks provided for the Mooney. The shape of the tank is a problem in their minds so i will get a chart that tells me what the actual level is based on the readout value on the tks controler. In other words when the controller says i have 1 gallon remaining i may not really have that amount. I really can not undrstand why they can not measure 6 gallons any better than that. John N782JB

i think that is the next step for the guys at Modern Aero. They are a certified Garmin repair center and a certified mooney repair center. They should have what it takes. Thanks John

You have struck a nerve. Not just the tks but the fuel system and my manifold pressure are also a problem reading fluid level and correct mf pressure. We are NOW looking at the connections and the engine data computer AND ALL WIRING. We have been working all these issues for some time and have thrown alot of parts without success. With the fuel system we have changed the senders, re-calibrate and can not get the system to stay where we put it. Mooney has done everything i have asked and TKS has stepped up also. We have sent both ends of the tks system, (sender and controller) for their review and calibration on the test bench. We expect to get it back overnight on Monday for reinstall. All parties have bent over backwords to meet my needs with out reservation and concern for costs of warranty. Regards John N782JB

You have struck a nerve. Not just the tks but the fuel system and my manifold pressure are also a problem reading fluid level and correct mf pressure. We are not looking at the connections and the engine data computer. We have been working all these issues for some time and have thrown alot of parts without success. With the fuel system we have changed the senders, re-calibrate and can not get the system to stay where we put it. Mooney has done everything i have asked and TKS has stepped up also. We have sent both ends of the tks system, (sender and controller) for their review and calibration on the test bench. We expect to get it back overnight on Monday for reinstall. All parties have bent over backwords to meet my needs with out reservation and concern for costs of warranty. Regards John N782JB

the plane is at ASI jet Center at the Flying Cloud Airport in MSP.

Staphanie S Stacey E and Paul Kehner. John

Does anyone have any experience with the tks system on a new acclaim? I am having much dificulty getting the fluid level to register properly on the panel mounted fluid indicator. Mooney has supported the effort 100% but we are unable to resolve the issue. we have changed the sending unit twice and tried 3 new main controllers and still unable to get accurate level readings. Any help will be welcome John B N782JB

Hey Aaron, I am a new owner of a 2008 Acclaim. I go to Texas Feb. 8th for my transition training. I fly out of Leesburg, Fla. John B.