Re: General Info wanted about temps
Posted: Sun Dec 03, 2017 10:36 pm
Honestly, I've never found sealing the heck out of the baffles to change anything. I think sealing every little crack and opening is over rated in the Sonex cowl. That said, I did put a piece of heat resistant tape over the hole in the engine case that you point to.
Your engine is going to run hot at the beginning. That's the nature of new engines. Just try the suggestions people have presented here, keeping the CHT temps below 400F, and run at 3,000 rpm or more as much as possible within temperature limits. Don't worry too much about EGTs. It's the CHTs that really mean something. EGTs are just an indicator rather than an absolute.
Your engine is going to run hot at the beginning. That's the nature of new engines. Just try the suggestions people have presented here, keeping the CHT temps below 400F, and run at 3,000 rpm or more as much as possible within temperature limits. Don't worry too much about EGTs. It's the CHTs that really mean something. EGTs are just an indicator rather than an absolute.