Posted for "Cy Galley" <cgalley@qcbc.org>:

It doesn't take much of a gap.  Friend had a baffle seal flip over backwards
and the closest cylinder went quickly to critical temp on his test flight.
You might have a seal that flops over under pressure.  Your cowling may
expand enough for this to happen and you might not find it.

I tried to find some neat baffle pictures showing little puckers that caused
high temps.

On my Bellanca, I had baffle that I though leaned against some rubber and
sealed.  Just putting a flap of duct tape in that location brought the temps
down over 10 degrees centigrade.

Incidentally, the gentleman that wrote the message that his temps are ok
with your set up may just have the right slant.  The location that produces
enough pressure differential for proper cooling is important.

Cy Galley, TC - Chair, Emergency Aircraft Repair, Oshkosh

Editor, EAA Safety Programs
cgalley@qcbc.org or experimenter@eaa.org

Always looking for articles for  the Experimenter