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Old 01-09-2013, 08:18 PM   #3
Kube
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Join Date: May 2010
Location: Wisconsin, USA
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Default Re: 40 Ford vacuum top cylinder restoration

Hydro won't be of any help with vacuum type canisters. If the shaft is pitted (most likely) a new one can be produced fairly easily (read: reasonably) at any decent machine shop.
The Lincoln canisters are as you stated, a bit larger in diameter than the Ford. They are RARE and the chances of finding good replacements are near zero.
If the canisters are pitted bad, that can be a bit of a challenge to repair correctly. Spray welding and boring to the correct diameter is the "right way" to restore them. If they are not too bad, you may try something akin to JB weld and sand smooth.
New leather piston rings can be made easily. If that's something you don;t want to take upon yourself, I'd suggest a good shoe repair shop...
The upper seal can be purchased at any good bearing / seal supplier. They are not obsolete.
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