Muncie Gear Neptune 10A2

[JDusza]

I'm trying to save a Neptune 10A2, c. 1940.

The piston is frozen in the cylinder. I believe from neglect and rust and not from scoring.
The connecting rod and crank are in good shape.
I have the cylinder flooded with PB Blaster, soaking.
Is there anything else I can try to loosen the piston?
It appears the piston is aluminum, the cylinder walls are cast iron, and the piston rings are steel, so I think the rings are stuck to the cylinder.
And, while we're here, is there a source for seals and gaskets, etc.?
Thanks,
J

 

[nwcove]

Re: Muncie Gear Neptune 10A2

google doug penn, hes probably the most knowledgeable guy on the continent when it comes to those mighty mites. real good guy.

 

[ronboonville]

Re: Muncie Gear Neptune 10A2

Not sure about your neptune cylinder configuration but rogersjetboat posted a video when I had same problem, youtube, Maytag Gas Engine junk yard special #4, I also soaked cylinder and piston in automatic trans fluid and acetone for a week. then I made puller like the maytag guy. hope this helps.

 

[JDusza]

Re: Muncie Gear Neptune 10A2

This is all good.
Thank you!
Cheers!
J