Originally Posted by prkaye
Thanks Vern. I can't get out to the airport again to inspect things until mid next week, but I will look for the flashing then. My engine is an overhauled O-320 with new ECI cylidners. Would the new cylinders include new cooling fins (that might have this flashing stuck between them), or would the cooling fins be the original ones? When they replace cylinders, I'm just not sure what this typically includes.
Can you describe what to look for regarding these flashings? What do they look like? Would they be under the engine paint?
I think it makes sense to wait until after break-in to determine whether I need to get my carb re-jetted... do you agree?
If you have new cylinders, you shoul check for the flashings. The cooling fins should have slots that are unobstructed between the plugs. I don't have pics handy, but there are some on the internet if you search.
As for re-jetting, you should determine if you need to do it right away. When in flight, try leaning the engine. If you can't find a lean peak and are then able to go 100F rich of peak, you are already too lean and need the carb rejetted. All of my RV buddies have had to do this in order to get lower CHTs at takeoff and a distinctive lean peak.