Home › Forum › Ask A Member › 1957 Evinrude Lighttwin 3 compression › Re: 1957 Evinrude Lighttwin 3 compression

#59035
Mumbles
Participant

    Hopefully it is just the gasket and nothing else. The heads tend to get a concave shape over time allowing the gasket to blow in the middle so it’s highly recommended to straighten the heads surface out while it is off. This can be done with wet ‘n dry paper and a piece of plate glass.