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Atlantic make and break stuck on the ...

Old Marine Engine » Atlantic - Lunenburg Foundry » Atlantic make and break stuck on the fly wheel « Previous Next »

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Craig Smith
New member
Username: craigsm

Post Number: 1
Registered: 09-2007
Posted on Sunday, September 16, 2007 - 06:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have a atlantic make and break engine that is stuck on the fly wheel it moves some but not alot. What is my best option to try to free up the engine. Where can I get a manual for the engine
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J.B. Castagnos
Senior Member
Username: jb_castagnos

Post Number: 288
Registered: 07-2002


Posted on Sunday, September 16, 2007 - 08:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Try to see if the piston is moving, you may be able to see it through the exhaust. If it's at top or bottom center it may move a little without moving the piston. Try to get some penetrating oil in the cylinder, you may have to remove the ignitor. If the piston is moving, it should go with the oil, if not you may have to take it apart.
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John Archibald
Member
Username: john_archibald

Post Number: 22
Registered: 08-2006


Posted on Sunday, September 16, 2007 - 09:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Craig,

I would try some Aero-Kroil shot in from all angles and let it set for a week. Each night squirt it again.

If that doesn't free it up, try to figure where the piston is by taking off one of the side plate covers.

Sometimes you can remove the rod from the crankshaft and also remove the base. This may allow you to drive the piston up toward the top with a few hammer raps on a piece of end grain oak placed on the piston skirts, wrist pin bosses, etc. If she budges, keep doing it. If not, soak again with the Aero-Kroil and try the next day, etc. ( Lather, rinse, repeat. )

If push comes to shove, you may have to take the priming fitting off the top of the cylinder and fill the cylinder up with grease. Keep pumping with a grease gun until she is full and then eventually this will develop presure enough to move the piston down to free it up...if you are lucky.

If the piston is in such a position where the grease just can't seal above the piston, you may have to give things a bit more thought.

Try the Aero-Kroil. It is much better than WD40 and other such products. Look it up on Google, they sell online.

Aero-Kroil is mostly turpentine and so you can try that if you don't want to buy the Aero-Kroil. The price is about the same as WD40, however.

Archibald
Northfield, Minnesota
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Roger DiRuscio
Senior Member
Username: solarrog

Post Number: 263
Registered: 03-2002


Posted on Sunday, September 16, 2007 - 10:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

If it is at the bottom of the stroke, pull the cylinder and hone it, Refit and try it again.
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Mitchell Fancy
New member
Username: cmorgan

Post Number: 3
Registered: 10-2010
Posted on Tuesday, November 02, 2010 - 06:58 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Sometimes the water jackets inside the cylinders will rust so badly that the pockets will fill with rust. this can cause pressure on the cylinder and can actually deform the inside cylinder wall(causing the piston to get stuck) , and in some extreme cases put a bulge or split the outside of the casting.this is definatley something to look for when buying an engine that has been sitting around for a while.

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