Evinrude Lark Identifecation?

fish101

Recruit
Joined
Sep 18, 2011
Messages
3
Hello I should start out by saying I'm new at this. I just got a 1968 Seaswirl 12 footer, with a Evinrude lark on it, the engine cover is ovalish, and the numbers stamped on the freeze plug are # 25526 "on top and" 02156 "in the second row" can the size of the engine and year built be determined from these numbers?:confused: I may be needing some parts. On the first check of this engine, I took the lower unit off and the water pump is still good and pliable but the oil in the lower geared out put was almost empty seems to be leaking from the prop shaft seal. On the top end I inspected the pistons from the exhaust side and there was some galling of the aluminum in the piston skirts but not near the rings, guessing from incorrect oil mix from last owner. I would like to keep this all vintage to go with the boat all help will be greatly appreciated.

Thank you
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Evinrude Lark Identifecation?

Model number 25526 identifies the engine as a 1956 30hp Evinrude. The remaining number of 02156 would be thee serial number.
 

fish101

Recruit
Joined
Sep 18, 2011
Messages
3
Re: Evinrude Lark Identifecation?

Fleet Admiral Reeves,

Thank you for this information! And helping out the new Cadet.
Is there some place I can find out more about this engine?
Is there a key to the model number code, or do I just need to spend time around these older engines to understand what they stand for?
Thank you again...
 

fish101

Recruit
Joined
Sep 18, 2011
Messages
3
Re: Evinrude Lark Identifecation?

Just a update I got the engine running and it runs good, really good! I have a hard time believing this is a 1956 it runs better then lots of newer engines I have worked on... I am having it painted and setting up my boat up to have the same paint colors as the lark did in 56. I will set up pictures when done Thanks again for the help
 

samo_ott

Vice Admiral
Joined
Jun 18, 2006
Messages
5,125
Re: Evinrude Lark Identifecation?

I have the parts manual for the 25526. If you want it send me a PM with your email address and model#.
 
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