Mooney 201 - Lycoming engine.
We just installed a factory OH Lycoming IO-360-A3B6. 20 degrees timing, Slick mags, etc.
We have 15 hours on it now, and the CHTs are still flirting with 380-400 and that is 25 LOP and below 4000'. The airplane is noticeably slower flying like this, about 5-7 KTAS slower. The cowl flpas must be half open to maintain <360 CHT. Mixture 80 ROP? forget it. This is about 20 degrees warmer than the old engine, which had 25 degrees timing. The CHTs dropped about 20 degrees in the first 30 minutes on the first flight, yet remain at this higher level 380-400. It never used any oil, and according to Lycoming's break in instructions, break in is complete.
I am just wondering when the CHTs will stabilize at the level we had with the old engine, so i can put in a 25 degree Electroair? Has anyone recently broken in a factory Lycoming engine?
We just installed a factory OH Lycoming IO-360-A3B6. 20 degrees timing, Slick mags, etc.
We have 15 hours on it now, and the CHTs are still flirting with 380-400 and that is 25 LOP and below 4000'. The airplane is noticeably slower flying like this, about 5-7 KTAS slower. The cowl flpas must be half open to maintain <360 CHT. Mixture 80 ROP? forget it. This is about 20 degrees warmer than the old engine, which had 25 degrees timing. The CHTs dropped about 20 degrees in the first 30 minutes on the first flight, yet remain at this higher level 380-400. It never used any oil, and according to Lycoming's break in instructions, break in is complete.
I am just wondering when the CHTs will stabilize at the level we had with the old engine, so i can put in a 25 degree Electroair? Has anyone recently broken in a factory Lycoming engine?