Re: 1956 Sea King 12 HP exhaust plates gaskets Home › Forum › Ask A Member › 1956 Sea King 12 HP exhaust plates gaskets › Re: 1956 Sea King 12 HP exhaust plates gaskets chris-pReplies: 2456Topics: 153 August 29, 2017 at 8:28 pm #64008 I always seal exhaust cover gaskets. Always but sealer on bolts as well. The guy down the road will thank you.