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Don Maxwell.. I have a question for you.. I have a 1968 M20C. Fred Blue's old plane that you used to service in TX. I recently installed a engine anylizer and can see all 4 CHT's First off.. Ignorance was bliss. My number 3 that the factory guage is on is the coolest... Go figure. Anyway, numbers 1 and 3 run cool enough.. like 380 max in climb and 330-350 in cruise... My number 2 and 4 run really hot in climb... I have to put the nose down to climb at 125MPH or more and those two still sit at 430 and 440, if I try to do a 100mph climb they will excdede 460. I have checked the baffeling and remade some of the doghouse. I am ordering a new internal cylinder baffle today. I checked my fixed cowl flaps and they are both open at least as much as the book says. My question is what prevents me from upgrading to a modern style baffel system instead of the doghouse. can this work or if not what else is different. Anyone can answer but I figured the expert Don is one oppinion I would like to have. BTW no induction leaks and those two Cyl do not peak any sooner which would indicate an air leak in the induction system. Any help would be great.
