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Old 03-05-2021, 11:54 AM   #22
katy
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Join Date: Jun 2015
Location: Red Deer, Alberta
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Default Re: What is Engine 'Break-in'??

Quote:
Originally Posted by Mister Moose View Post
My Model A engine rebuilder instructed me to run for short periods of 10 minutes and then a cool down. The explanation was the rope rear seal would burn if run for too long, that it needed to seat from wear over a longer period of time. If the engine was run too long the rear seal would carbonize from the frictional heat before the seal was worn in.
Last time I looked, Model A engines don't have a "rope rear seal".
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Last edited by katy; 03-05-2021 at 11:54 AM. Reason: Corrected typo
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