For the past two months, I've been working on the interior of my M20J ('84). It all started with the desire to update to panel with WAAS capability, and in an effort to reduce costs, I would remove the interior panels before the installation.
Well, the panels were yellow/orange-ish in color (originally an off-white color), the seats looked "OK-ish", but dated in colors, the yokes were suffering from severe flaking, and the insulation was minimal.
So, I removed the seats and shipped them to AirTex Interiors to be covered in leather. The panels were removed, repaired as required, then repainted using the SEM "color coat" paint. I used Santa Fe and Satin Black, followed by a coat of clear coat. The old insulation, a mixture of fiberglass and thin (1/2 ") closed cell, was removed and replaced with a M20J SoundEx insulation kit.
The yokes were covered by AeroComfort with leather and the new Mooney logo. Besides the great looks, they feel really nice in the hand too.
I found that the fresh air scoop in the co-pilot side also emits water into the hoses, both over the behind the panel to the pilot side air vent and to the cabin vent control valve. Both hoses had to be replaced as the metal coil inside each was rusted and had penetrated the fabric covering.
Finally, the panel was upgraded (Exxel Avionics) by replacing the KNS-80 with a G430W augmented with an Aero 560 with XM Weather and crossfill from the 430W. I also upgraded to PS Engineering 8000B panel and added intercom jacks for the rear pax too.
I bought some 3 mil Al foil to back the new placards (High Plane Graphics), and have yet to attach them. A few leather inserts also need to be taped into place. But, its almost done! I'm quite happy with the results.
Greg.
P.S. Credit must be given to Mooney201.com for the inspiration on the color and armrest modifications to cover the unused ashtrays.