Re: 1959 10 HP Evinrude Sportwin

[fisherman6]

quote Buccaneer:

I did some checking out this morning, and I
do have the dreaded “CLUNK” on the wrist pin
test. Not real impressed with the compression either,
64 & 70 psi. Good news is it had spark, lol.

The ugly one of my three had only about 68psi of compression before I started running it. I have not measured it since then but it’s a great runner. If you’ve got the clunk, you may end up going through the powerhead, or just looking for a replacement. At 40 bucks, you’re still in pretty good shape on the investment if you ask me. If it were mine I would at least start it and see what it sounds like. If it’s clattering, pull the cylinder head and check for cylinder damage. If the cylinders are still good tear it down and replace the pistons, wristpins, and rebush the rods if they need it.
-Ben

OldJohnnyRude on YouTube