In the last 15 minutes of a 2 hour flight the CHTL started jumping between 147 and 0 erratically. The CHTR was stable at 181 and EGTL/R at 1360, Any ideas?
I tried all the above to no success. In testing today I discovered the erratic reading even with the engine off so there was nothing vibrating to jiggle a loose connection. Any other ideas?
Certainly sounds like a bad thermocouple. My EGT thermocouple failed in this exact mode. One source for the new part is... https://www.ebay.com/itm/Rotax-912-...ash=item3600d73235:g:VkUAAOSwboVXPF30&vxp=mtr