Hot C85-12 Baffling Felt Question

[astjp2]

every square inch of open area that is not necessary can raise temps by 20 degrees

[Scott]

Felt is probably not what you need. Difficult to tell from the photos but if the seal material is not formed a little during installation, it will tend to bunch up when the cowling pushes it over. In other words you end up with too much material so you get the wavy effect. May be able to improve this situation by shortening the seal alittle, otherwise the simplest solution is to snip the middle of each wave or take out a this wedge. If they are silicone seals, super glue works if you want to join the material after trimming.

for the larger openings, add baffle and seal material as needed to close the gaps. Make sure the under cowl pressure is pushing the seals against the cowling so and not blowing them away from their sealing surface.

[TC747paul]

Good Morning Everyone, Another Hot C85-12 question. Does anyone know what the felt like material is that i have seen used as baffling extensions from the back metal baffle to the cowl hood?
i have airform baffling which are excellent but the rubber has firmed up and i have some very large gaps (curling) maybe some trimming would help?
I put a light behind the baffle, close up cowling with the hangar lights out.



thanks Paul