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Antique Gas Engine Discussion

Piston clearance


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Old 06-09-2005, 01:11:14 PM
Richard H. Gambrell Richard H. Gambrell is offline
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Default Piston clearance

Just had my Sattley 3 HP engine sleeved back to standard 4.5 inch bore.
How much clearance should I allow for the piston when I bore the sleeve?
The piston is cast iron of course and is 4.495 inches.
What should the bore of the cylinder be?
Thanks, Richard
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Old 06-09-2005, 01:35:57 PM
J.B. Castagnos J.B. Castagnos is offline
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Default Re: Piston clearance

.001" per inch for cast iron, .0045 in your case. More won't hurt, I've seen them with plenty clearance running fine.
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Old 06-09-2005, 02:33:44 PM
Richard H. Gambrell Richard H. Gambrell is offline
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Default Re: Piston clearance

Thank you very much. I will call the machine shop now and ley him know.
Richard
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