1956 Evinrude 7.5. Home › Forum › Ask A Member › 1956 Evinrude 7.5. This topic has 0 replies, 1 voice, and was last updated 3 years, 2 months ago by russ. Viewing 1 post (of 1 total) russReplies: 81Topics: 59 January 17, 2021 at 9:02 am #227980 I am replacing the exhaust housing gasket on this motor. Going to use 3M Scotch weld 847.Do I need to apply this on both sides of the gasket? Also do the screws holding the power head on need the sealant? Thanks to all. Stay Safe Russ….. Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In