Vans has a heat shield product that is designed for this.
Adhesive backed alum foil.
Big thing is to get the inner cowl surface clean, and smooth. A wet coat of epoxy brushed on is a good way to do it. Sand as needed, roll on foil.
Vans has a heat shield product that is designed for this.
Adhesive backed alum foil.
Big thing is to get the inner cowl surface clean, and smooth. A wet coat of epoxy brushed on is a good way to do it. Sand as needed, roll on foil.
For maximum protection, you can use fiberfrax and top it off with the aluminum foil. I had used this in my lower cowl and was amazing how cool the bottom cowl felt to touch even after just shut down of the engine.
http://www.aircraftspruce.com/catal...MIyuXfw8CY2wIVyR6GCh2l5wOqEAQYASABEgLn__D_BwE
i also highly recommend getting some teflon tape, and lining the sections where the baffling material rubs against the cowl, you will be amazed at the reduced vibrations transmitted to the airframe
We did this to our airplanes as well when we experienced the heat damage to