i used honda bond, with no paper gasket. main thing on this is both surfaces have to be free of grease and oil. lightly sand the contact areas with 320 grit paper and use any ultra grey silicone, i use honda bond 10.00 a tube at honda dealer. use it on all jobs at work, never had any leaks. http://www.inlinefour.com/oemhoho.html this is what most japanese car companies use to put together transmissions and timing covers, thery are getting away from paper gaskets...