When I surface older Commando parts, I use 320 grit on my surface plate, but I also have a piece of metal 10" x 2" x 1/4" thick and I bond on a strip pf sandpaper, that way I can use it to follow the direction of the gasket surface to get the sanding scratches in line or parallel with the surface. The scratches give the gasket "Tooth" to grip to and I would use a very thin smear of Ultra Grey RVT to bond it. I would also do the head surface too. ( being careful to keep grit out. Clean surfaces to de grease. A very flat smooth surface is the hardest surface to seal. and like when painting you need to have a freshly sanded surface for the paint to bond to. Let the RTV cure for 24 Hrs. Also retork after the first run.
Meaning it's a design concern, so the best we can do with it is ensure the rocker cover is flat and use a good quality gasket.....not much else we can do realistically beyond that, unfortunately 🤷🏻♂️
Haha well, hopefully not....but an explanation as to the problems the 961's has, goes a long way to understanding what anyone who is working on them is up against
Seem illogical....as you'd just have areas in view each side of the engine that are not part of the subject matter. Press the full screen icon, bottom right of the screen 😉
