I've had the top cowl on/off a dozen times. There is a problem area I am having trouble solving. The inlet ramps are glued onto the top cowl and at the aft inboard side, there is a 1 1/2 inch triangle of opening that seems difficult to positon baffle seal over. Its a vertical triangle space on the top side of the inlet ramp aft of the middle baffle metal. Hard to describe, but its driving me nuts trying to cover. I read elsewhere builders glass in the inboard opening between the inlet ramp fiberglass and the top cowl above it. I first thought that's a lot of work and other builders have said they did not see any improvement in CHTs after that mod. Any pressurized air that gets above the inlet ramp, finds its way around the forward cowl down to underneath the engine. Sort of like a cooling air leak. The goal is to force every cubic inch of air through the engine fins to cool it. Any air getting to the bottom of the engine without going through fins is a ''leak''-- wasted cooling potential. That also raises pressure under the engine where you don't want more pressure. Less pressure ''sucks'' cooling air through the engine fins for efficient cooling. I'll figure it out eventually.
If I stare at it long enough, the answer will jump up and bite me... How to do the middle and outside.
Same here. Also, notice I finished installing inlet plenum and filter. Yeah!!!
Poor photo of how seal will push up against top cowl to pressurize the chamber.
