Piston ring replacement

[Dakar]

Hi all,
I am recently retired,after 50 years of
being a motor technician.and decided I would get myself a little boat and outboard.
Cut a long story short,the motor was laid up for a while,said the previous owner,and wouldn’t start,I got it home,and run a few checks and found no compression.
I thought happy days head off now I am baffled ,and don’t want to take a hammer to anything that vaguely look like aluminium.
Pleas could someone tell me how I get the barrel off.
The engine is a little Mariner 3.3 .
I would appreciate your help and advice very much.
Regards
Daryl
Excuse me if I have posted in the wrong area.

 

[CLB]

barrel? Not sure what you mean. Most outboards have a bottom end (albeit not actually at the bottom as the engine is on its side) that can be removed to access the crankshaft and facilitate removal of pistons.

With a two stroke, lack of compression can also be caused by worn crankcase seals. There is one at the tip, and one at the bottom.

 

[Dakar]

Good evening CLB,
Many thanks for your reply.
By barrel I mean the cylinder liner

 

[Dakar]

Sorry hit the send button.
This engine is a single cylinder,and it’s horizontal,yes it does lay on its side,
I am attaching a couple of photos that might better explain what I am trying to say.
Photo 1 is the piston (cylinder head removed) photo 2 is the bottom end of the engine with carburettor removed photo 3 is the cylinder assembly bolted down.
I hope that gives you some idea of what I am trying to do.
Kind regards and stay safe.
Daryl

 

[rafiki_]

Dakar, you might be better on the PBO Forum?

 

[Kawasaki]

Sorry hit the send button.
This engine is a single cylinder,and it’s horizontal,yes it does lay on its side,
I am attaching a couple of photos that might better explain what I am trying to say.
Photo 1 is the piston (cylinder head removed) photo 2 is the bottom end of the engine with carburettor removed photo 3 is the cylinder assembly bolted down.
I hope that gives you some idea of what I am trying to do.
Kind regards and stay safe.
Daryl

Can't see any pictures?????