If you are talking about the Piper original headliner, I used white shoe polish with the sponge applicators. It will take multiple coats to get rid of the stains. If you do not mind a lot of paint masking in the cockpit, then use SEM Colorcoat paint. That will give you more choices on colors. SEM says you can use it on fabric, vinyl, and carpets.
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In spite of what you might read, the CHTs of 3 and 4 and not anywhere near extremely hot. They're higher than is optimum for cruise, but during climb the shouldn't worry you.
That said, it's almost always worth the time and $$$ to make sure the flexible baffle seals-the ones that close the gap between the metal baffles and the cowling-are in good shape. One easy way to find leaks is to put a light source up the hole in the bottom of the lower cowling; then look through the two ram air openings in the front of the cowling to find any light leaks.
Obviously this method works best at low light.
When you find a leak, either replace the flexible seals--I like the kits from McFarlane Aviation. You can find an example here: www.mcfarlaneaviation.com/products/product/BAFFLE-KIT-1BF/
.
The other thing that owners and mechanics for smaller leaks it fill then (artfully) with RTV. RTV is room temperature vulcanize silicone. You can buy tubes of it at any auto parts or hardware store.
Start with this.
Please let me know what you find.
Steve
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