On Sat, 12 May 2007 17:08:02 -0400, Gene Kearns
wrote:

On Sat, 12 May 2007 19:44:03 GMT, Short Wave Sportfishing penned the
following well considered thoughts to the readers of rec.boats:

On Sat, 12 May 2007 11:47:05 -0700, Josh Assing
wrote:

Two people (one I consider knowledgeable and one from a shop I use regularly)
said "that's not enough clearance, should be about 10% of the prop diameter"

And ten percent of a 15 inch diameter prop would be what?

That is way to close for a number of reasons including cavitation.

What you are looking for is a 14.5/21p or thereabouts - might need a
19p - doubt if you will need a 23.

1.5 inches? Mine is 1 inch with a 13.25 inch prop.

Suzuki puts a 14 inch prop on the same engine.... so, I'm figuring
that they are OK with 5/8 of an inch....

Yeah - I didn't quite say that correctly. In fact, I thought 1.5
inches was a little much - as in 10% seemed like a lot.

On the ETEC, it's a half inch.