Arlen
Well Known Member
When I bought my -6, there was an area below Cylinder #2 where the paint had blistered off. Presuming it was from excessive heat in that area, a heat shield was laid inside the bottom cowl in that location and the glass and paint were repaired.
I believe it's a standard -6 cowling, and there's a Lycoming O-360 inside. The paint used was PPG Concept polyurethane. There do not seem to be any exhaust leaks.
In about 25 hours of flight since the repairs and re-painting, I now see the beginning of some tiny paint blisters again. Most of them are in a line around what corresponds to the outside edge of where the heat shield sits inside the cowl, but a couple are "through" the heat shield.
Is this a known issue with RV cowlings? Is there a fix?
I believe it's a standard -6 cowling, and there's a Lycoming O-360 inside. The paint used was PPG Concept polyurethane. There do not seem to be any exhaust leaks.
In about 25 hours of flight since the repairs and re-painting, I now see the beginning of some tiny paint blisters again. Most of them are in a line around what corresponds to the outside edge of where the heat shield sits inside the cowl, but a couple are "through" the heat shield.
Is this a known issue with RV cowlings? Is there a fix?