warren.huisman

It is, but the oil congeals in the oil cooler and therefore prevents oil flow. I am saying this from experience. -25 F on the ground and the engine was over heating in flight due to this. I tape off the entire oil cooler when it is anywhere near this temp. My experience is in a J model. I assume other models with different engines would react similarly but I have no first hand experience with them. Sent from my iPhone using Tapatalk

Make sure you have an oil cooler winterization plate or equivalent (aluminum tape works well) over the oil cooler or the engine will over heat. If the oil cooler is covered you should be fine. The cabin can get a little cold, especially for your feet as the heat comes out well behind your feet. Sent from my iPhone using Tapatalk

Hitting the west coast of Michigan at 15k. For anyone familiar with the area, Silver lake and the Silver lake sand dunes are clearly visible!! Sent from my iPhone using Tapatalk

Here’s what it looked like in the Midwest yesterday. Sent from my iPhone using Tapatalk

Update on the autopilot. We finally figured out that the instrument shop messed up the overhaul. The output from the gyro was reversed which led to the immediate pitch up or pitch down. Frustrating couple of months but it is working again. Sometimes perseverance pays off! Thank you to Bob Weber for his help as well. Sent from my iPhone using Tapatalk

Swap bulbs and make sure the issue follows the socket and not the lamp. Sent from my iPhone using Tapatalk

Update on the autopilot. Altitude hold started to get really lazy as well. I could easily be plus / minus 3-400 off target altitude. So the next step I took was to remove the attitude indicator and have it overhauled by a local instrument shop. He found several things wrong which plausibly explained my issues. However, when the gyro was reinstalled into the airplane, as soon as the autopilot is engaged, it immediately pitches down or up. It is not consistent whether it pitches up or down. I took it to an avionics shop and we checked the harness between the gyro and the autopilot and it all checked ok per the wiring diagram. We also measured the excitation voltage with a meter and it was approx 1.2v rms, (we didn't put a scope on it). According to the instrument shop it should be 5 volts ac and 5000 hz. Any ideas for next steps?

I’ve used one on a Cherokee and was very happy with it. Sent from my iPhone using Tapatalk

What are your power setting which have the vibration? Sent from my iPhone using Tapatalk

This autopilot always has pitch control active, either altitude hold or attitude hold. I did try to put it in attitude hold and then select and hold down without success as well. (It does not have altitude pre-select). It’s just very strange that it will initiate a climb but not a descent…. It’s the same servo as far as I know… Sent from my iPhone using Tapatalk

I have a century trident 2 axis autopilot with altitude hold. Nice autopilot but lately it refuses to descend. It will climb and hold altitude on command but not descend. Ground check, up and down seems ok. Any ideas or is my auto pilot going Tago Uniform? Sent from my iPhone using Tapatalk

I’ve had this problem a couple of times and it has been broken wires where they exit the yoke tube and another time I had a bad micro switch. Sent from my iPhone using Tapatalk

Vinyl numbers are certainly available and they aren’t terribly expensive. I’ve used them on aircraft which had the little tiny numbers - ATC couldn’t read them - and they worked well. No ideas the legalities of having only Vinyl numbers however…. Sent from my iPhone using Tapatalk

I’ve was thinking the same thing! Sent from my iPhone using Tapatalk

Highly recommend Oasis in Willmar. I’m also in Michigan and have been getting my J serviced there. Sent from my iPhone using Tapatalk