Low EGT on one cylinder Rotax

[Makoppa]

Hi fellow Aviators

I am flying a Xenon gyro with a Rotax Turbo motor. My cockpit is equiped with a Oddysey Stratomaster system, indicating inter alia EGT on each cylinder as well ad 2 CHT readings.

On my return flight yesterday from Cumberland to Rustenburg I noticed that the one EGT reading indicated around 450 whilst all 3 others indicated a normal 790 range.

I am not a petrol head, but did not experience any recognisable drop in power.

Any ideas pls?

Regards

Cobus Enslin

[Nacho]

1. Swap the probes if possible and see if the problem also moves, if it does, it is a temperamental probe. Replace it. It is normally very easy to swap the probes. Might be a faulty probe.

2. If the problems still persists it might be a dead plug, meaning you are running on 3 cylinders. Use the same method of troubleshooting, swap the plugs around.

Do the above on the ground, run the engine up and do your checks like that. This is not a big problem I am sure. Will take 30min to do both of the above tests.

[Turbo]

Probes, spark plugs and carb balancing -- id check these in that order.

[lion]

Was flying in a group with a Xenon - same problem - simple....egt probe loose...tightened and problem gone.

[Koevoet]

Recently same problem, [one needle was broken] new gauge problem solved.