I'm having and issue with a new IO-360-B1B engine that I don't understand. When running ROP all temps appear to be within reason See Test 3.png below). But when I run LOP cylinders #1 and #3 CHT's start getting cold (over 50* deviation - see Test 1.png ,BUT the EGT's don't fall as expected. After a short time the engine starts getting rough like #1 & #3 are mis-firing. What would cause two cyclinders CHT's to deviate downward (and not the rest) with the EGT's staying relatively constant, when LOP but not ROP?
I've tested all the temp prob's and they are accurate.
I've tested all the temp prob's and they are accurate.