Re: Top speed with 18hp Evinrude on 14′ aluminum

[jerry-ahrens]

You really have to watch the compression gauge closely, to see how fast they pump up while cranking. I had an 18 a little older than yours that had near 95 psi, but the pistons were scored from overheating. Its a good idea to pull the intake port covers and have a look before purchasing. These old engines would run so good for so long, that folks wouldn’t bother with impeller maintenance! Then one good over heat would spell the end for an otherwise good engine.