Did your temps come down?
F1 Rocket, Did your temps come down? If so after how many hours?
This is an old thread, but might be interesting to those breaking in a rebuilt engine. A few more data points for others having trouble.
Sadly, I can't offer any solutions. I have read a bunch of threads on this site and have come to no conclusion. Interesting how many opinions there are on this subject ranging from a meticulous step by step process (usually referred to in another thread) to "Fly the bleap out of the airplane". I had several issues on the ground before my maiden voyage, increasing the likely hood that I have glazed cylinders.
I have an O-360-A1A with a VS prop. I have Superior Cylinders and a Lycoming Case. Hartzel Blended Airfoil 7497 prop. I have only Mags (Bendix). I now have about 14 hours on the engine. My outside air temps are between 100 and 108 degrees F. (I live in the Dallas/Ft worth metro area). It is August. My CHT are between 350 and 395 at about 24" and 2300 RPM. My oil temp is about 210-215. I am hopeful that the rings will seat soon. The engine performs well and delivers over 2K per min in a climb (28" 2700). Of course I can't enjoy that but for a minute and must level off and drastically reduce power (to about 20" and 2100). If I don't arrest the climb, the oil temp hops up to 220 and is moving fast to 230. The hottest CHT moves past 415 with the rest of the cylinders around 390 - 400. I can lean at power settings below 75% (2500 to 3500 msl and a fuel flow rate of 9 gal/hour), but the temps will be begin a slow climb upward in cruise and after about 15-20 mins, I must reduce power settings down in the 20 / 2100 range and enrich a bit to reduce the oil and chts.
The #1 and #3 cylinders are 35 to 45 degrees hotter with the #1 cylinder being the hottest. I am using Aeroshell 100 oil.
I will report back at 25 - 30 hours and again at 50 hours.