Reply To: 1959 Evinrude Lark 35 hp tear down

[Buccaneer]

I’ll try to get a better photo of the piston, but the pin dug a tunnel from the top ring
land and popped out on the top of the piston, where the big ugly hole is in the photo.
I did not see any evidence of the pin or pieces of the piston floating loose in the
cylinder. Guess they’re in the bottom of some lake!

I took the exhaust cover off today. The inner cover does not appear to have any
pin holes in it. Lots of oily coke / carbon in the exhaust chamber though.
Cleaned up the powerhead somewhat as well. Next I’ll clean up gasket surfaces
and try to hone the cylinder and do some measurements.

I may check the lower unit to make sure it’s “viable” before I go ordering pistons, etc.

Prepare to be boarded!